Vörösmarty, Charles J; Fekete, B M; Tucker, B A (2004): Monthly mean river discharge at gauging station Niamey [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.219343, In: Vörösmarty, CJ et al. (1998): Discarge compilation from The Global River Discharge (RivDIS) Project [dataset publication series]. Distributed Active Archive Center, Oak Ridge National Laboratory, PANGAEA, https://doi.org/10.1594/PANGAEA.859439
Always quote citation above when using data! You can download the citation in several formats below.
Related to:
Vörösmarty, Charles J; Fekete, B M; Tucker, B A (1998): Global River Discharge, 1807-1991, V[ersion]. 1.1 (RivDIS) [dataset]. ORNL DAAC, Oak Ridge, Tennessee, USA, https://doi.org/10.3334/ORNLDAAC/199
Coverage:
Latitude: 13.000000 * Longitude: 2.000000
Date/Time Start: 1929-01-15T00:00:00 * Date/Time End: 1991-09-15T00:00:00
Minimum Elevation: 176.0 m * Maximum Elevation: 176.0 m
Event(s):
Niamey (15) * Latitude: 13.000000 * Longitude: 2.000000 * Elevation: 176.0 m * Location: Niger, Niger, Africa * Campaign: Global River Discharge * Method/Device: River gauging station (RGS) * Comment: Area: 700000 km**2; Mapcode of UNESCO report: C3
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DATE/TIME | Date/Time | Geocode | |||
| 2 | River discharge, monthly mean | Q month mean | m3/s | Vörösmarty, Charles J | Stream Gauging |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
685 data points
Data
| 1 Date/Time | 2 Q month mean [m3/s] |
|---|---|
| 1929-01-15 | 1747.0 |
| 1929-02-15 | 1955.0 |
| 1929-03-15 | 1921.0 |
| 1929-04-15 | 1637.0 |
| 1929-05-15 | 877.0 |
| 1929-06-15 | 302.0 |
| 1929-07-15 | 263.0 |
| 1929-08-15 | 873.0 |
| 1929-09-15 | 1221.0 |
| 1929-10-15 | 1395.0 |
| 1929-11-15 | 1538.0 |
| 1929-12-15 | 1672.0 |
| 1930-01-15 | 1820.0 |
| 1930-02-15 | 1980.0 |
| 1930-03-15 | 1910.0 |
| 1930-04-15 | 1550.0 |
| 1930-05-15 | 816.0 |
| 1930-06-15 | 330.0 |
| 1930-07-15 | 380.0 |
| 1930-08-15 | 785.0 |
| 1930-09-15 | 1220.0 |
| 1930-10-15 | 1360.0 |
| 1930-11-15 | 1520.0 |
| 1930-12-15 | 1680.0 |
| 1931-01-15 | 1850.0 |
| 1931-02-15 | 1910.0 |
| 1931-03-15 | 1730.0 |
| 1931-04-15 | 1330.0 |
| 1931-05-15 | 544.0 |
| 1931-06-15 | 234.0 |
| 1931-07-15 | 315.0 |
| 1931-08-15 | 677.0 |
| 1931-09-15 | 1080.0 |
| 1931-10-15 | 1320.0 |
| 1931-11-15 | 1520.0 |
| 1931-12-15 | 1650.0 |
| 1932-01-15 | 1720.0 |
| 1932-02-15 | 1730.0 |
| 1932-03-15 | 1500.0 |
| 1932-04-15 | 800.0 |
| 1932-05-15 | 285.0 |
| 1932-06-15 | 100.0 |
| 1934-01-15 | 1756.0 |
| 1934-02-15 | 1792.0 |
| 1934-03-15 | 1606.0 |
| 1934-04-15 | 1048.0 |
| 1934-05-15 | 390.0 |
| 1934-06-15 | 121.0 |
| 1934-07-15 | 87.7 |
| 1934-08-15 | 225.0 |
| 1934-09-15 | 893.0 |
| 1934-10-15 | 1237.0 |
| 1934-11-15 | 1392.0 |
| 1934-12-15 | 1589.0 |
| 1935-01-15 | 1650.0 |
| 1935-02-15 | 1650.0 |
| 1935-03-15 | 1330.0 |
| 1935-04-15 | 581.0 |
| 1935-05-15 | 177.0 |
| 1935-06-15 | 72.9 |
| 1935-07-15 | 60.0 |
| 1935-08-15 | 314.0 |
| 1935-09-15 | 939.0 |
| 1935-10-15 | 1300.0 |
| 1935-11-15 | 1450.0 |
| 1935-12-15 | 1610.0 |
| 1936-01-15 | 1640.0 |
| 1936-02-15 | 1780.0 |
| 1936-03-15 | 1510.0 |
| 1936-04-15 | 788.0 |
| 1936-05-15 | 248.0 |
| 1936-06-15 | 939.0 |
| 1936-07-15 | 280.0 |
| 1936-08-15 | 754.0 |
| 1936-09-15 | 1450.0 |
| 1936-10-15 | 1370.0 |
| 1941-01-15 | 1450.0 |
| 1941-02-15 | 1330.0 |
| 1941-03-15 | 900.0 |
| 1941-04-15 | 430.0 |
| 1941-05-15 | 90.0 |
| 1941-06-15 | 25.0 |
| 1941-07-15 | 25.0 |
| 1941-08-15 | 320.0 |
| 1941-09-15 | 725.0 |
| 1941-10-15 | 1000.0 |
| 1941-11-15 | 1230.0 |
| 1941-12-15 | 1420.0 |
| 1942-01-15 | 1487.0 |
| 1942-02-15 | 1353.0 |
| 1942-03-15 | 814.0 |
| 1942-04-15 | 278.0 |
| 1942-05-15 | 77.0 |
| 1942-06-15 | 30.0 |
| 1942-07-15 | 77.0 |
| 1942-08-15 | 400.0 |
| 1942-09-15 | 851.0 |
| 1942-10-15 | 1039.0 |
| 1942-11-15 | 1216.0 |
| 1942-12-15 | 1387.0 |
| 1943-01-15 | 1406.0 |
| 1943-02-15 | 1225.0 |
| 1943-03-15 | 625.0 |
| 1943-04-15 | 156.0 |
| 1943-05-15 | 45.0 |
| 1943-06-15 | 21.0 |
| 1943-07-15 | 32.0 |
| 1943-08-15 | 381.0 |
| 1943-09-15 | 1128.0 |
| 1943-10-15 | 1221.0 |
| 1943-11-15 | 1272.0 |
| 1943-12-15 | 1481.0 |
| 1944-01-15 | 1610.0 |
| 1944-02-15 | 1470.0 |
| 1944-03-15 | 864.0 |
| 1944-04-15 | 233.0 |
| 1944-05-15 | 59.9 |
| 1944-06-15 | 20.0 |
| 1944-07-15 | 10.0 |
| 1944-08-15 | 98.3 |
| 1944-09-15 | 569.0 |
| 1944-10-15 | 963.0 |
| 1944-11-15 | 1200.0 |
| 1944-12-15 | 1400.0 |
| 1945-01-15 | 1472.0 |
| 1945-02-15 | 1181.0 |
| 1945-03-15 | 503.0 |
| 1945-04-15 | 123.0 |
| 1945-05-15 | 37.2 |
| 1945-06-15 | 21.5 |
| 1945-07-15 | 18.7 |
| 1945-08-15 | 41.5 |
| 1945-09-15 | 919.0 |
| 1945-10-15 | 1303.0 |
| 1945-11-15 | 1457.0 |
| 1945-12-15 | 1623.0 |
| 1946-01-15 | 1759.0 |
| 1946-02-15 | 1652.0 |
| 1946-03-15 | 1317.0 |
| 1946-04-15 | 482.0 |
| 1946-05-15 | 96.8 |
| 1946-06-15 | 28.4 |
| 1946-07-15 | 39.8 |
| 1946-08-15 | 436.0 |
| 1946-09-15 | 1045.0 |
| 1946-10-15 | 1235.0 |
| 1946-11-15 | 1378.0 |
| 1946-12-15 | 1546.0 |
| 1947-01-15 | 1670.0 |
| 1947-02-15 | 1770.0 |
| 1947-03-15 | 1550.0 |
| 1947-04-15 | 836.0 |
| 1947-05-15 | 180.0 |
| 1947-06-15 | 60.0 |
| 1947-07-15 | 22.0 |
| 1947-08-15 | 228.0 |
| 1947-09-15 | 806.0 |
| 1947-10-15 | 1070.0 |
| 1947-11-15 | 1230.0 |
| 1947-12-15 | 1420.0 |
| 1948-01-15 | 1502.0 |
| 1948-02-15 | 1300.0 |
| 1948-03-15 | 602.0 |
| 1948-04-15 | 172.0 |
| 1948-05-15 | 46.7 |
| 1948-06-15 | 15.5 |
| 1948-07-15 | 9.3 |
| 1948-08-15 | 475.0 |
| 1948-09-15 | 973.0 |
| 1948-10-15 | 1195.0 |
| 1948-11-15 | 1383.0 |
| 1948-12-15 | 1529.0 |
| 1949-01-15 | 1652.0 |
| 1949-02-15 | 1558.0 |
| 1949-03-15 | 1014.0 |
| 1949-04-15 | 329.0 |
| 1949-05-15 | 85.8 |
| 1949-06-15 | 40.8 |
| 1949-07-15 | 34.4 |
| 1949-08-15 | 126.0 |
| 1949-09-15 | 818.0 |
| 1949-10-15 | 1127.0 |
| 1949-11-15 | 1320.0 |
| 1949-12-15 | 1485.0 |
| 1950-01-15 | 1582.0 |
| 1950-02-15 | 1416.0 |
| 1950-03-15 | 822.0 |
| 1950-04-15 | 238.0 |
| 1950-05-15 | 66.3 |
| 1950-06-15 | 16.4 |
| 1950-07-15 | 13.2 |
| 1950-08-15 | 477.0 |
| 1950-09-15 | 1327.0 |
| 1950-10-15 | 1385.0 |
| 1950-11-15 | 1514.0 |
| 1950-12-15 | 1660.0 |
| 1951-01-15 | 1814.0 |
| 1951-02-15 | 1869.0 |
| 1951-03-15 | 1690.0 |
| 1951-04-15 | 969.0 |
| 1951-05-15 | 241.0 |
| 1951-06-15 | 68.3 |
| 1951-07-15 | 158.0 |
| 1951-08-15 | 565.0 |
| 1951-09-15 | 983.0 |
| 1951-10-15 | 1228.0 |
| 1951-11-15 | 1414.0 |
| 1951-12-15 | 1563.0 |
| 1952-01-15 | 1733.0 |
| 1952-02-15 | 1860.0 |
| 1952-03-15 | 1860.0 |
| 1952-04-15 | 1599.0 |
| 1952-05-15 | 870.0 |
| 1952-06-15 | 233.0 |
| 1952-07-15 | 93.8 |
| 1952-08-15 | 429.0 |
| 1952-09-15 | 1407.0 |
| 1952-10-15 | 1541.0 |
| 1952-11-15 | 1563.0 |
| 1952-12-15 | 1674.0 |
| 1953-01-15 | 1859.0 |
| 1953-02-15 | 1955.0 |
| 1953-03-15 | 1825.0 |
| 1953-04-15 | 1311.0 |
| 1953-05-15 | 565.0 |
| 1953-06-15 | 210.0 |
| 1953-07-15 | 189.0 |
| 1953-08-15 | 845.0 |
| 1953-09-15 | 1352.0 |
| 1953-10-15 | 1449.0 |
| 1953-11-15 | 1566.0 |
| 1953-12-15 | 1709.0 |
| 1954-01-15 | 1942.0 |
| 1954-02-15 | 2021.0 |
| 1954-03-15 | 1851.0 |
| 1954-04-15 | 1352.0 |
| 1954-05-15 | 602.0 |
| 1954-06-15 | 228.0 |
| 1954-07-15 | 296.0 |
| 1954-08-15 | 835.0 |
| 1954-09-15 | 1178.0 |
| 1954-10-15 | 1376.0 |
| 1954-11-15 | 1549.0 |
| 1954-12-15 | 1717.0 |
| 1955-01-15 | 1945.0 |
| 1955-02-15 | 2073.0 |
| 1955-03-15 | 1980.0 |
| 1955-04-15 | 1612.0 |
| 1955-05-15 | 919.0 |
| 1955-06-15 | 365.0 |
| 1955-07-15 | 290.0 |
| 1955-08-15 | 816.0 |
| 1955-09-15 | 1248.0 |
| 1955-10-15 | 1443.0 |
| 1955-11-15 | 1614.0 |
| 1955-12-15 | 1784.0 |
| 1956-01-15 | 2003.0 |
| 1956-02-15 | 2146.0 |
| 1956-03-15 | 1967.0 |
| 1956-04-15 | 1465.0 |
| 1956-05-15 | 693.0 |
| 1956-06-15 | 233.0 |
| 1956-07-15 | 119.0 |
| 1956-08-15 | 476.0 |
| 1956-09-15 | 1081.0 |
| 1956-10-15 | 1274.0 |
| 1956-11-15 | 1400.0 |
| 1956-12-15 | 1552.0 |
| 1957-01-15 | 1681.0 |
| 1957-02-15 | 1680.0 |
| 1957-03-15 | 1402.0 |
| 1957-04-15 | 676.0 |
| 1957-05-15 | 203.0 |
| 1957-06-15 | 68.7 |
| 1957-07-15 | 60.0 |
| 1957-08-15 | 548.0 |
| 1957-09-15 | 1027.0 |
| 1957-10-15 | 1275.0 |
| 1957-11-15 | 1480.0 |
| 1957-12-15 | 1650.0 |
| 1958-01-15 | 1874.0 |
| 1958-02-15 | 2039.0 |
| 1958-03-15 | 1970.0 |
| 1958-04-15 | 1613.0 |
| 1958-05-15 | 797.0 |
| 1958-06-15 | 300.0 |
| 1958-07-15 | 365.0 |
| 1958-08-15 | 908.0 |
| 1958-09-15 | 1510.0 |
| 1958-10-15 | 1356.0 |
| 1958-11-15 | 1460.0 |
| 1958-12-15 | 1628.0 |
| 1959-01-15 | 1789.0 |
| 1959-02-15 | 1867.0 |
| 1959-03-15 | 1713.0 |
| 1959-04-15 | 1172.0 |
| 1959-05-15 | 456.0 |
| 1959-06-15 | 140.0 |
| 1959-07-15 | 101.0 |
| 1959-08-15 | 575.0 |
| 1959-09-15 | 1259.0 |
| 1959-10-15 | 1301.0 |
| 1959-11-15 | 1449.0 |
| 1959-12-15 | 1644.0 |
| 1960-01-15 | 1788.0 |
| 1960-02-15 | 1808.0 |
| 1960-03-15 | 1436.0 |
| 1960-04-15 | 665.0 |
| 1960-05-15 | 198.0 |
| 1960-06-15 | 56.5 |
| 1960-07-15 | 65.5 |
| 1960-08-15 | 545.0 |
| 1960-09-15 | 1048.0 |
| 1960-10-15 | 1290.0 |
| 1960-11-15 | 1470.0 |
| 1960-12-15 | 1656.0 |
| 1961-01-15 | 1826.0 |
| 1961-02-15 | 1829.0 |
| 1961-03-15 | 1528.0 |
| 1961-04-15 | 827.0 |
| 1961-05-15 | 250.0 |
| 1961-06-15 | 76.2 |
| 1961-07-15 | 70.6 |
| 1961-08-15 | 458.0 |
| 1961-09-15 | 304.0 |
| 1961-10-15 | 1294.0 |
| 1961-11-15 | 1422.0 |
| 1961-12-15 | 1612.0 |
| 1962-01-15 | 1744.0 |
| 1962-02-15 | 1647.0 |
| 1962-03-15 | 1130.0 |
| 1962-04-15 | 374.0 |
| 1962-05-15 | 119.0 |
| 1962-06-15 | 40.7 |
| 1962-07-15 | 52.6 |
| 1962-08-15 | 512.0 |
| 1962-09-15 | 1234.0 |
| 1962-10-15 | 1319.0 |
| 1962-11-15 | 1481.0 |
| 1962-12-15 | 1667.0 |
| 1963-01-15 | 1885.0 |
| 1963-02-15 | 2039.0 |
| 1963-03-15 | 1745.0 |
| 1963-04-15 | 1128.0 |
| 1963-05-15 | 404.0 |
| 1963-06-15 | 135.0 |
| 1963-07-15 | 106.0 |
| 1963-08-15 | 300.0 |
| 1963-09-15 | 828.0 |
| 1963-10-15 | 1135.0 |
| 1963-11-15 | 1325.0 |
| 1963-12-15 | 1558.0 |
| 1964-01-15 | 1761.0 |
| 1964-02-15 | 1828.0 |
| 1964-03-15 | 1532.0 |
| 1964-04-15 | 686.0 |
| 1964-05-15 | 301.0 |
| 1964-06-15 | 96.4 |
| 1964-07-15 | 97.0 |
| 1964-08-15 | 696.0 |
| 1964-09-15 | 1394.0 |
| 1964-10-15 | 1405.0 |
| 1964-11-15 | 1528.0 |
| 1964-12-15 | 1738.0 |
| 1965-01-15 | 1980.0 |
| 1965-02-15 | 2059.0 |
| 1965-03-15 | 1787.0 |
| 1965-04-15 | 1125.0 |
| 1965-05-15 | 383.0 |
| 1965-06-15 | 126.0 |
| 1965-07-15 | 84.0 |
| 1965-08-15 | 677.0 |
| 1965-09-15 | 1516.0 |
| 1965-10-15 | 1494.0 |
| 1965-11-15 | 1585.0 |
| 1965-12-15 | 1739.0 |
| 1966-01-15 | 1899.0 |
| 1966-02-15 | 1882.0 |
| 1966-03-15 | 1402.0 |
| 1966-04-15 | 570.0 |
| 1966-05-15 | 166.0 |
| 1966-06-15 | 67.0 |
| 1966-07-15 | 48.0 |
| 1966-08-15 | 168.0 |
| 1966-09-15 | 732.0 |
| 1966-10-15 | 1170.0 |
| 1966-11-15 | 1433.0 |
| 1966-12-15 | 1704.0 |
| 1967-01-15 | 1914.0 |
| 1967-02-15 | 1935.0 |
| 1967-03-15 | 1437.0 |
| 1967-04-15 | 556.0 |
| 1967-05-15 | 163.0 |
| 1967-06-15 | 58.0 |
| 1967-07-15 | 55.0 |
| 1967-08-15 | 427.0 |
| 1967-09-15 | 1392.0 |
| 1967-10-15 | 1413.0 |
| 1967-11-15 | 1609.0 |
| 1967-12-15 | 1879.0 |
| 1968-01-15 | 2166.0 |
| 1968-02-15 | 2306.0 |
| 1968-03-15 | 1975.0 |
| 1968-04-15 | 1139.0 |
| 1968-05-15 | 357.0 |
| 1968-06-15 | 114.0 |
| 1968-07-15 | 184.0 |
| 1968-08-15 | 648.0 |
| 1968-09-15 | 1009.0 |
| 1968-10-15 | 1294.0 |
| 1968-11-15 | 1549.0 |
| 1968-12-15 | 1763.0 |
| 1969-01-15 | 1896.0 |
| 1969-02-15 | 1702.0 |
| 1969-03-15 | 1017.0 |
| 1969-04-15 | 321.0 |
| 1969-05-15 | 89.0 |
| 1969-06-15 | 37.0 |
| 1969-07-15 | 55.0 |
| 1969-08-15 | 427.0 |
| 1969-09-15 | 1392.0 |
| 1969-10-15 | 1413.0 |
| 1969-11-15 | 1609.0 |
| 1969-12-15 | 1879.0 |
| 1970-01-15 | 2236.0 |
| 1970-02-15 | 2285.0 |
| 1970-03-15 | 1844.0 |
| 1970-04-15 | 847.0 |
| 1970-05-15 | 225.0 |
| 1970-06-15 | 79.0 |
| 1970-07-15 | 51.0 |
| 1970-08-15 | 252.0 |
| 1970-09-15 | 838.0 |
| 1970-10-15 | 1197.0 |
| 1970-11-15 | 1434.0 |
| 1970-12-15 | 1680.0 |
| 1971-01-15 | 1795.0 |
| 1971-02-15 | 1435.0 |
| 1971-03-15 | 617.0 |
| 1971-04-15 | 179.0 |
| 1971-05-15 | 530.0 |
| 1971-06-15 | 18.0 |
| 1971-07-15 | 47.0 |
| 1971-08-15 | 258.0 |
| 1971-09-15 | 921.0 |
| 1971-10-15 | 1216.0 |
| 1971-11-15 | 1478.0 |
| 1971-12-15 | 1749.0 |
| 1972-01-15 | 1790.0 |
| 1972-02-15 | 1302.0 |
| 1972-03-15 | 493.0 |
| 1972-04-15 | 140.0 |
| 1972-05-15 | 43.0 |
| 1972-06-15 | 20.0 |
| 1972-07-15 | 121.0 |
| 1972-08-15 | 690.0 |
| 1972-09-15 | 1044.0 |
| 1972-10-15 | 1245.0 |
| 1972-11-15 | 1399.0 |
| 1972-12-15 | 1613.0 |
| 1973-01-15 | 1440.0 |
| 1973-02-15 | 826.0 |
| 1973-03-15 | 290.0 |
| 1973-04-15 | 64.0 |
| 1973-05-15 | 20.5 |
| 1973-06-15 | 8.9 |
| 1973-07-15 | 47.5 |
| 1973-08-15 | 328.0 |
| 1973-09-15 | 796.0 |
| 1973-10-15 | 1200.0 |
| 1973-11-15 | 1440.0 |
| 1973-12-15 | 1520.0 |
| 1974-01-15 | 1170.0 |
| 1974-02-15 | 533.0 |
| 1974-03-15 | 162.0 |
| 1974-04-15 | 45.0 |
| 1974-05-15 | 14.0 |
| 1974-06-15 | 4.6 |
| 1974-07-15 | 151.0 |
| 1974-08-15 | 405.0 |
| 1974-09-15 | 1220.0 |
| 1974-10-15 | 1430.0 |
| 1974-11-15 | 1690.0 |
| 1974-12-15 | 1910.0 |
| 1975-01-15 | 1970.0 |
| 1975-02-15 | 1410.0 |
| 1975-03-15 | 502.0 |
| 1975-04-15 | 93.0 |
| 1975-05-15 | 32.5 |
| 1975-06-15 | 11.0 |
| 1975-07-15 | 72.0 |
| 1975-08-15 | 542.0 |
| 1975-09-15 | 1230.0 |
| 1975-10-15 | 1390.0 |
| 1975-11-15 | 1590.0 |
| 1975-12-15 | 1870.0 |
| 1976-01-15 | 2011.0 |
| 1976-02-15 | 1686.0 |
| 1976-03-15 | 755.0 |
| 1976-04-15 | 192.0 |
| 1976-05-15 | 62.7 |
| 1976-06-15 | 30.2 |
| 1976-07-15 | 68.8 |
| 1976-08-15 | 394.0 |
| 1976-09-15 | 971.0 |
| 1976-10-15 | 1295.0 |
| 1976-11-15 | 1499.0 |
| 1976-12-15 | 1675.0 |
| 1977-01-15 | 1892.0 |
| 1977-02-15 | 1862.0 |
| 1977-03-15 | 1225.0 |
| 1977-04-15 | 420.0 |
| 1977-05-15 | 110.0 |
| 1977-06-15 | 38.0 |
| 1977-07-15 | 110.0 |
| 1977-08-15 | 301.0 |
| 1977-09-15 | 795.0 |
| 1977-10-15 | 1045.0 |
| 1977-11-15 | 1272.0 |
| 1977-12-15 | 1430.0 |
| 1978-01-15 | 1134.0 |
| 1978-02-15 | 512.0 |
| 1978-03-15 | 181.0 |
| 1978-04-15 | 66.6 |
| 1978-05-15 | 31.6 |
| 1978-06-15 | 25.0 |
| 1978-07-15 | 49.8 |
| 1978-08-15 | 832.0 |
| 1978-09-15 | 1006.0 |
| 1978-10-15 | 1264.0 |
| 1978-11-15 | 1470.0 |
| 1978-12-15 | 1626.0 |
| 1979-01-15 | 1718.0 |
| 1979-02-15 | 1354.0 |
| 1979-03-15 | 533.0 |
| 1979-04-15 | 144.0 |
| 1979-05-15 | 48.8 |
| 1979-06-15 | 27.6 |
| 1979-07-15 | 72.2 |
| 1979-08-15 | 517.0 |
| 1979-09-15 | 1349.0 |
| 1979-10-15 | 1526.0 |
| 1979-11-15 | 1741.0 |
| 1979-12-15 | 1865.0 |
| 1980-01-15 | 1904.0 |
| 1980-02-15 | 1325.0 |
| 1980-03-15 | 476.0 |
| 1980-04-15 | 125.0 |
| 1980-05-15 | 32.0 |
| 1980-06-15 | 12.5 |
| 1980-07-15 | 384.0 |
| 1980-08-15 | 450.0 |
| 1980-09-15 | 787.0 |
| 1980-10-15 | 1150.0 |
| 1980-11-15 | 1386.0 |
| 1980-12-15 | 1493.0 |
| 1981-01-15 | 1268.0 |
| 1981-02-15 | 667.0 |
| 1981-03-15 | 235.0 |
| 1981-04-15 | 71.0 |
| 1981-05-15 | 17.0 |
| 1981-06-15 | 6.4 |
| 1981-07-15 | 53.0 |
| 1981-08-15 | 515.0 |
| 1981-09-15 | 1095.0 |
| 1981-10-15 | 1361.0 |
| 1981-11-15 | 1554.0 |
| 1981-12-15 | 1700.0 |
| 1982-01-15 | 1577.0 |
| 1982-02-15 | 804.0 |
| 1982-03-15 | 240.0 |
| 1982-04-15 | 79.2 |
| 1982-05-15 | 25.1 |
| 1982-06-15 | 22.0 |
| 1982-07-15 | 100.0 |
| 1982-08-15 | 740.0 |
| 1982-09-15 | 989.0 |
| 1982-10-15 | 1175.0 |
| 1982-11-15 | 1333.0 |
| 1982-12-15 | 1374.0 |
| 1983-01-15 | 1009.0 |
| 1983-02-15 | 429.0 |
| 1983-03-15 | 135.0 |
| 1983-04-15 | 52.6 |
| 1983-05-15 | 13.3 |
| 1983-06-15 | 35.3 |
| 1983-07-15 | 53.2 |
| 1983-08-15 | 555.0 |
| 1983-09-15 | 857.0 |
| 1983-10-15 | 1071.0 |
| 1983-11-15 | 1236.0 |
| 1983-12-15 | 1211.0 |
| 1984-01-15 | 694.0 |
| 1984-02-15 | 266.0 |
| 1984-03-15 | 101.0 |
| 1984-04-15 | 36.3 |
| 1984-05-15 | 11.8 |
| 1984-06-15 | 20.9 |
| 1984-07-15 | 10.7 |
| 1984-08-15 | 282.0 |
| 1984-09-15 | 779.0 |
| 1984-10-15 | 1136.0 |
| 1984-11-15 | 1057.0 |
| 1984-12-15 | 897.0 |
| 1985-01-15 | 466.0 |
| 1985-02-15 | 174.0 |
| 1985-03-15 | 68.3 |
| 1985-04-15 | 17.4 |
| 1985-05-15 | 7.4 |
| 1985-06-15 | 2.9 |
| 1985-07-15 | 488.0 |
| 1985-08-15 | 1201.0 |
| 1985-09-15 | 1198.0 |
| 1985-10-15 | 1363.0 |
| 1985-11-15 | 1471.0 |
| 1985-12-15 | 1003.0 |
| 1986-01-15 | 1003.0 |
| 1986-02-15 | 371.0 |
| 1986-03-15 | 121.0 |
| 1986-04-15 | 35.3 |
| 1986-05-15 | 18.9 |
| 1986-06-15 | 11.9 |
| 1986-07-15 | 69.9 |
| 1986-08-15 | 387.0 |
| 1986-09-15 | 720.0 |
| 1986-10-15 | 983.0 |
| 1986-11-15 | 1217.0 |
| 1986-12-15 | 1227.0 |
| 1987-01-15 | 797.0 |
| 1987-02-15 | 310.0 |
| 1987-03-15 | 104.0 |
| 1987-04-15 | 48.9 |
| 1987-05-15 | 28.6 |
| 1987-06-15 | 17.5 |
| 1987-07-15 | 71.8 |
| 1987-08-15 | 288.0 |
| 1987-09-15 | 691.0 |
| 1987-10-15 | 995.0 |
| 1987-11-15 | 1097.0 |
| 1987-12-15 | 1150.0 |
| 1988-01-15 | 726.0 |
| 1988-02-15 | 265.0 |
| 1988-03-15 | 91.2 |
| 1988-04-15 | 43.9 |
| 1988-05-15 | 26.1 |
| 1988-06-15 | 45.1 |
| 1988-07-15 | 189.0 |
| 1988-08-15 | 1123.0 |
| 1988-09-15 | 1513.0 |
| 1988-10-15 | 1262.0 |
| 1988-11-15 | 1396.0 |
| 1988-12-15 | 1412.0 |
| 1989-01-15 | 843.0 |
| 1989-02-15 | 306.0 |
| 1989-03-15 | 114.0 |
| 1989-04-15 | 43.1 |
| 1989-05-15 | 19.5 |
| 1989-06-15 | 8.2 |
| 1989-07-15 | 125.0 |
| 1989-08-15 | 659.0 |
| 1989-09-15 | 920.0 |
| 1989-10-15 | 1009.0 |
| 1989-11-15 | 1187.0 |
| 1989-12-15 | 1218.0 |
| 1990-01-15 | 877.0 |
| 1990-02-15 | 296.0 |
| 1990-03-15 | 106.0 |
| 1990-04-15 | 40.8 |
| 1990-05-15 | 12.0 |
| 1990-06-15 | 13.6 |
| 1990-07-15 | 75.9 |
| 1990-08-15 | 454.0 |
| 1990-09-15 | 995.0 |
| 1990-10-15 | 1101.0 |
| 1990-11-15 | 1225.0 |
| 1990-12-15 | 1195.0 |
| 1991-01-15 | 697.0 |
| 1991-02-15 | 298.0 |
| 1991-03-15 | 118.0 |
| 1991-04-15 | 52.8 |
| 1991-05-15 | 69.0 |
| 1991-06-15 | 143.0 |
| 1991-07-15 | 91.0 |
| 1991-08-15 | 741.0 |
| 1991-09-15 | 1224.0 |