|
| Rank | Year | | Annual Flow | 3-Year Mean |
| 1956 | -441849600000 | 2536.2 |
|
| 1957 | -410227200000 | 1245.4 |
|
| 1958 | -378691200000 | 2472.1 |
2084.6 |
| 1959 | -347155200000 | 802.0 |
1506.5 |
| 1960 | -315619200000 | 719.4 |
1331.1 |
| 1961 | -283996800000 | 567.8 |
696.4 |
| 1962 | -252460800000 | 1868.3 |
1051.8 |
| 1963 | -220924800000 | 1916.9 |
1451.0 |
| 1964 | -189388800000 | 904.2 |
1563.1 |
| 1965 | -157766400000 | 1981.6 |
1600.9 |
| 1966 | -126230400000 | 1209.6 |
1365.1 |
| 1967 | -94694400000 | 3288.0 |
2159.7 |
| 1968 | -63158400000 | 836.1 |
1777.9 |
| 1969 | -31536000000 | 4207.2 |
2777.1 |
| 1970 | 0000 | 1307.8 |
2117.0 |
| 1971 | 31536000000 | 1163.1 |
2226.0 |
| 1972 | 63072000000 | 855.5 |
1108.8 |
| 1973 | 94694400000 | 2092.2 |
1370.3 |
| 1974 | 126230400000 | 2060.8 |
1669.5 |
| 1975 | 157766400000 | 1562.5 |
1905.2 |
| 1976 | 189302400000 | 536.1 |
1386.5 |
| 1977 | 220924800000 | 394.9 |
831.2 |
| 1978 | 252460800000 | 3355.5 |
1428.8 |
| 1979 | 283996800000 | 1700.4 |
1816.9 |
| 1980 | 315532800000 | 2983.8 |
2679.9 |
| 1981 | 347155200000 | 1029.2 |
1904.5 |
| 1982 | 378691200000 | 3054.2 |
2355.7 |
| 1983 | 410227200000 | 4287.7 |
2790.4 |
| 1984 | 441763200000 | 1933.6 |
3091.8 |
| 1985 | 473385600000 | 1241.5 |
2487.6 |
| 1986 | 504921600000 | 3191.6 |
2122.2 |
| 1987 | 536457600000 | 771.2 |
1734.8 |
| 1988 | 567993600000 | 819.0 |
1593.9 |
| 1989 | 599616000000 | 899.4 |
829.9 |
| 1990 | 631152000000 | 680.6 |
799.7 |
| 1991 | 662688000000 | 1060.9 |
880.3 |
| 1992 | 694224000000 | 698.8 |
813.4 |
| 1993 | 725846400000 | 2483.8 |
1414.5 |
| 1994 | 757382400000 | 855.3 |
1345.9 |
| 1995 | 788918400000 | 3391.4 |
2243.5 |
| 1996 | 820454400000 | 2065.0 |
2103.9 |
| 1997 | 852076800000 | 2564.6 |
2673.7 |
| 1998 | 883612800000 | 2981.5 |
2537.0 |
| 1999 | 915148800000 | 1242.0 |
2262.7 |
| 2000 | 946684800000 | 1506.5 |
1910.0 |
| 2001 | 978307200000 | 1002.2 |
1250.2 |
| 2002 | 1009843200000 | 1133.4 |
1214.0 |
| 2003 | 1041379200000 | 1416.6 |
1184.1 |
| 2004 | 1072915200000 | 1047.0 |
1199.0 |
| 2005 | 1104537600000 | 2514.3 |
1659.3 |
| 2006 | 1136073600000 | 2881.1 |
2147.5 |
| 2007 | 1167609600000 | 678.0 |
2024.5 |
| 2008 | 1199145600000 | 1206.6 |
1588.6 |
| 2009 | 1230768000000 | 1347.0 |
1077.2 |
| 2010 | 1262304000000 | 2032.7 |
1528.7 |
| 2011 | 1293840000000 | 3293.0 |
2224.2 |
| 2012 | 1325376000000 | 827.0 |
2050.9 |
| 2013 | 1356998400000 | 691.0 |
1603.6 |
| 2014 | 1388534400000 | 538.7 |
685.5 |
| 2015 | 1420070400000 | 360.6 |
530.1 |
| 2016 | 1451606400000 | 1241.6 |
713.6 |
| 2017 | 1483228800000 | 4005.3 |
1869.2 |
| 2018 | 1514764800000 | 1264.1 |
2170.3 |
| 2019 | 1546300800000 | 2850.9 |
2706.8 |
| 2020 | 1577836800000 | 902.0 |
1672.3 |
| 2021 | 1609459200000 | 392.1 |
1381.7 |
| 2022 | 1640995200000 | 779.7 |
691.3 |
| 2023 | 1672531200000 | 4367.4 |
1846.4 |
| 2024 | 1704067200000 | 1599.1 |
2248.7 |
| 2025 | 1735689600000 | 1216.8 |
2394.4 |
| 2026 | 1767225600000 |
1310.5 |
1375.5 |
| Rank | Year | | Seasonal Flow | 3-Year Mean |
| 1956 | -441849600000 | 1591.5 |
|
| 1957 | -410227200000 | 1008.4 |
|
| 1958 | -378691200000 | 1981.8 |
1527.2 |
| 1959 | -347155200000 | 527.7 |
1172.6 |
| 1960 | -315619200000 | 541.2 |
1016.9 |
| 1961 | -283996800000 | 403.4 |
490.8 |
| 1962 | -252460800000 | 1495.4 |
813.3 |
| 1963 | -220924800000 | 1423.2 |
1107.3 |
| 1964 | -189388800000 | 642.1 |
1186.9 |
| 1965 | -157766400000 | 1323.0 |
1129.4 |
| 1966 | -126230400000 | 832.9 |
932.7 |
| 1967 | -94694400000 | 2321.2 |
1492.4 |
| 1968 | -63158400000 | 564.5 |
1239.5 |
| 1969 | -31536000000 | 3116.0 |
2000.5 |
| 1970 | 0000 | 884.1 |
1521.5 |
| 1971 | 31536000000 | 820.3 |
1606.8 |
| 1972 | 63072000000 | 548.0 |
750.8 |
| 1973 | 94694400000 | 1665.2 |
1011.1 |
| 1974 | 126230400000 | 1525.1 |
1246.1 |
| 1975 | 157766400000 | 1269.0 |
1486.4 |
| 1976 | 189302400000 | 304.5 |
1032.9 |
| 1977 | 220924800000 | 280.0 |
617.8 |
| 1978 | 252460800000 | 2381.8 |
988.8 |
| 1979 | 283996800000 | 1259.7 |
1307.2 |
| 1980 | 315532800000 | 1982.5 |
1874.7 |
| 1981 | 347155200000 | 796.9 |
1346.4 |
| 1982 | 378691200000 | 2197.6 |
1659.0 |
| 1983 | 410227200000 | 2699.5 |
1898.0 |
| 1984 | 441763200000 | 1135.5 |
2010.9 |
| 1985 | 473385600000 | 906.3 |
1580.5 |
| 1986 | 504921600000 | 2078.7 |
1373.5 |
| 1987 | 536457600000 | 568.2 |
1184.4 |
| 1988 | 567993600000 | 538.1 |
1061.7 |
| 1989 | 599616000000 | 638.8 |
581.7 |
| 1990 | 631152000000 | 492.6 |
556.5 |
| 1991 | 662688000000 | 856.3 |
662.6 |
| 1992 | 694224000000 | 499.4 |
616.1 |
| 1993 | 725846400000 | 1875.0 |
1076.9 |
| 1994 | 757382400000 | 631.6 |
1002.0 |
| 1995 | 788918400000 | 2391.6 |
1632.7 |
| 1996 | 820454400000 | 1500.1 |
1507.8 |
| 1997 | 852076800000 | 1342.1 |
1744.6 |
| 1998 | 883612800000 | 2246.5 |
1696.2 |
| 1999 | 915148800000 | 884.8 |
1491.1 |
| 2000 | 946684800000 | 1153.1 |
1428.1 |
| 2001 | 978307200000 | 779.7 |
939.2 |
| 2002 | 1009843200000 | 838.0 |
923.6 |
| 2003 | 1041379200000 | 1033.8 |
883.8 |
| 2004 | 1072915200000 | 698.8 |
856.9 |
| 2005 | 1104537600000 | 1915.7 |
1216.1 |
| 2006 | 1136073600000 | 2309.2 |
1641.2 |
| 2007 | 1167609600000 | 435.4 |
1553.5 |
| 2008 | 1199145600000 | 917.2 |
1220.6 |
| 2009 | 1230768000000 | 1009.0 |
787.2 |
| 2010 | 1262304000000 | 1568.0 |
1164.7 |
| 2011 | 1293840000000 | 2319.0 |
1632.0 |
| 2012 | 1325376000000 | 538.9 |
1475.3 |
| 2013 | 1356998400000 | 429.4 |
1095.8 |
| 2014 | 1388534400000 | 407.9 |
458.7 |
| 2015 | 1420070400000 | 208.4 |
348.6 |
| 2016 | 1451606400000 | 878.9 |
498.4 |
| 2017 | 1483228800000 | 2688.5 |
1258.6 |
| 2018 | 1514764800000 | 914.7 |
1494.0 |
| 2019 | 1546300800000 | 2169.2 |
1924.1 |
| 2020 | 1577836800000 | 661.3 |
1248.4 |
| 2021 | 1609459200000 | 283.0 |
1037.8 |
| 2022 | 1640995200000 | 457.7 |
467.3 |
| 2023 | 1672531200000 | 3105.9 |
1282.2 |
| 2024 | 1704067200000 | 1202.7 |
1588.8 |
| 2025 | 1735689600000 | 880.4 |
1729.7 |
| 2026 | 1767225600000 | 652.1 |
911.8 |
|