|
| Rank | Year | | Annual Flow | 3-Year Mean |
| 1961 | -283996800000 | 647.6 |
|
| 1962 | -252460800000 | 1924.0 |
|
| 1963 | -220924800000 | 1945.1 |
1505.6 |
| 1964 | -189388800000 | 922.2 |
1597.1 |
| 1965 | -157766400000 | 2272.4 |
1713.2 |
| 1966 | -126230400000 | 1298.9 |
1497.8 |
| 1967 | -94694400000 | 3232.5 |
2267.9 |
| 1968 | -63158400000 | 862.3 |
1797.9 |
| 1969 | -31536000000 | 4040.9 |
2711.9 |
| 1970 | 0000 | 1445.8 |
2116.3 |
| 1971 | 31536000000 | 1417.2 |
2301.3 |
| 1972 | 63072000000 | 1039.4 |
1300.8 |
| 1973 | 94694400000 | 2047.5 |
1501.4 |
| 1974 | 126230400000 | 2196.4 |
1761.1 |
| 1975 | 157766400000 | 1795.7 |
2013.2 |
| 1976 | 189302400000 | 628.9 |
1540.3 |
| 1977 | 220924800000 | 361.1 |
928.6 |
| 1978 | 252460800000 | 3402.9 |
1464.3 |
| 1979 | 283996800000 | 1832.1 |
1865.4 |
| 1980 | 315532800000 | 2973.8 |
2736.3 |
| 1981 | 347155200000 | 1068.4 |
1958.1 |
| 1982 | 378691200000 | 3316.8 |
2453.0 |
| 1983 | 410227200000 | 4641.5 |
3008.9 |
| 1984 | 441763200000 | 2042.7 |
3333.7 |
| 1985 | 473385600000 | 1135.2 |
2606.5 |
| 1986 | 504921600000 | 3031.3 |
2069.7 |
| 1987 | 536457600000 | 757.2 |
1641.2 |
| 1988 | 567993600000 | 861.6 |
1550.0 |
| 1989 | 599616000000 | 940.2 |
853.0 |
| 1990 | 631152000000 | 743.3 |
848.4 |
| 1991 | 662688000000 | 1027.0 |
903.5 |
| 1992 | 694224000000 | 809.0 |
859.8 |
| 1993 | 725846400000 | 2675.2 |
1503.7 |
| 1994 | 757382400000 | 826.7 |
1437.0 |
| 1995 | 788918400000 | 3881.7 |
2461.2 |
| 1996 | 820454400000 | 2202.5 |
2303.6 |
| 1997 | 852076800000 | 2823.5 |
2969.2 |
| 1998 | 883612800000 | 3162.7 |
2729.6 |
| 1999 | 915148800000 | 1527.0 |
2504.4 |
| 2000 | 946684800000 | 1736.0 |
2141.9 |
| 2001 | 978307200000 | 1064.7 |
1442.6 |
| 2002 | 1009843200000 | 1178.1 |
1326.3 |
| 2003 | 1041379200000 | 1452.2 |
1231.7 |
| 2004 | 1072915200000 | 1139.1 |
1256.5 |
| 2005 | 1104537600000 | 2827.5 |
1806.2 |
| 2006 | 1136073600000 | 3179.9 |
2382.1 |
| 2007 | 1167609600000 | 685.1 |
2230.8 |
| 2008 | 1199145600000 | 1114.1 |
1659.7 |
| 2009 | 1230768000000 | 1460.8 |
1086.7 |
| 2010 | 1262304000000 | 2029.3 |
1534.7 |
| 2011 | 1293840000000 | 3308.7 |
2266.3 |
| 2012 | 1325376000000 | 830.8 |
2056.3 |
| 2013 | 1356998400000 | 857.0 |
1665.5 |
| 2014 | 1388534400000 | 511.6 |
733.1 |
| 2015 | 1420070400000 | 326.7 |
565.1 |
| 2016 | 1451606400000 | 1304.6 |
714.3 |
| 2017 | 1483228800000 | 4397.3 |
2009.5 |
| 2018 | 1514764800000 | 1355.7 |
2352.5 |
| 2019 | 1546300800000 | 2734.7 |
2829.2 |
| 2020 | 1577836800000 | 885.7 |
1658.7 |
| 2021 | 1609459200000 | 521.5 |
1380.6 |
| 2022 | 1640995200000 | 1059.5 |
822.2 |
| 2023 | 1672531200000 | 4506.9 |
2029.3 |
| 2024 | 1704067200000 | 1761.5 |
2442.6 |
| 2025 | 1735689600000 | 1283.9 |
2517.4 |
| 2026 | 1767225600000 |
1941.3 |
1662.2 |
| Rank | Year | | Seasonal Flow | 3-Year Mean |
| 1961 | -283996800000 | 451.7 |
|
| 1962 | -252460800000 | 1486.1 |
|
| 1963 | -220924800000 | 1412.9 |
1116.9 |
| 1964 | -189388800000 | 643.1 |
1180.7 |
| 1965 | -157766400000 | 1421.4 |
1159.1 |
| 1966 | -126230400000 | 836.9 |
967.1 |
| 1967 | -94694400000 | 2327.4 |
1528.6 |
| 1968 | -63158400000 | 552.5 |
1238.9 |
| 1969 | -31536000000 | 2898.5 |
1926.2 |
| 1970 | 0000 | 907.2 |
1452.8 |
| 1971 | 31536000000 | 970.4 |
1592.0 |
| 1972 | 63072000000 | 652.8 |
843.5 |
| 1973 | 94694400000 | 1546.4 |
1056.5 |
| 1974 | 126230400000 | 1513.3 |
1237.5 |
| 1975 | 157766400000 | 1412.0 |
1490.6 |
| 1976 | 189302400000 | 349.9 |
1091.7 |
| 1977 | 220924800000 | 262.2 |
674.7 |
| 1978 | 252460800000 | 2334.7 |
982.2 |
| 1979 | 283996800000 | 1297.3 |
1298.0 |
| 1980 | 315532800000 | 1911.4 |
1847.8 |
| 1981 | 347155200000 | 783.5 |
1330.7 |
| 1982 | 378691200000 | 2295.1 |
1663.3 |
| 1983 | 410227200000 | 2860.5 |
1979.7 |
| 1984 | 441763200000 | 1114.7 |
2090.1 |
| 1985 | 473385600000 | 791.6 |
1588.9 |
| 1986 | 504921600000 | 1801.2 |
1235.8 |
| 1987 | 536457600000 | 553.9 |
1048.9 |
| 1988 | 567993600000 | 563.5 |
972.9 |
| 1989 | 599616000000 | 668.1 |
595.1 |
| 1990 | 631152000000 | 514.2 |
581.9 |
| 1991 | 662688000000 | 831.6 |
671.3 |
| 1992 | 694224000000 | 568.3 |
638.0 |
| 1993 | 725846400000 | 1944.4 |
1114.8 |
| 1994 | 757382400000 | 602.4 |
1038.4 |
| 1995 | 788918400000 | 2617.3 |
1721.4 |
| 1996 | 820454400000 | 1518.0 |
1579.2 |
| 1997 | 852076800000 | 1292.5 |
1809.3 |
| 1998 | 883612800000 | 2305.3 |
1705.3 |
| 1999 | 915148800000 | 1070.3 |
1556.0 |
| 2000 | 946684800000 | 1250.9 |
1542.1 |
| 2001 | 978307200000 | 794.4 |
1038.5 |
| 2002 | 1009843200000 | 847.3 |
964.2 |
| 2003 | 1041379200000 | 1060.3 |
900.7 |
| 2004 | 1072915200000 | 741.0 |
882.8 |
| 2005 | 1104537600000 | 2080.8 |
1294.0 |
| 2006 | 1136073600000 | 2470.2 |
1764.0 |
| 2007 | 1167609600000 | 430.7 |
1660.5 |
| 2008 | 1199145600000 | 824.6 |
1241.8 |
| 2009 | 1230768000000 | 1047.7 |
767.6 |
| 2010 | 1262304000000 | 1535.2 |
1135.8 |
| 2011 | 1293840000000 | 2244.9 |
1609.3 |
| 2012 | 1325376000000 | 559.2 |
1446.5 |
| 2013 | 1356998400000 | 521.6 |
1108.6 |
| 2014 | 1388534400000 | 376.2 |
485.7 |
| 2015 | 1420070400000 | 192.2 |
363.3 |
| 2016 | 1451606400000 | 897.5 |
488.6 |
| 2017 | 1483228800000 | 2641.0 |
1243.6 |
| 2018 | 1514764800000 | 947.7 |
1495.4 |
| 2019 | 1546300800000 | 2034.2 |
1874.3 |
| 2020 | 1577836800000 | 670.2 |
1217.4 |
| 2021 | 1609459200000 | 360.0 |
1021.5 |
| 2022 | 1640995200000 | 524.1 |
518.1 |
| 2023 | 1672531200000 | 2999.2 |
1294.4 |
| 2024 | 1704067200000 | 1269.3 |
1597.5 |
| 2025 | 1735689600000 | 856.9 |
1708.5 |
| 2026 | 1767225600000 |
1111.2 |
1079.1 |
|