|
| Rank | Year | | Annual Flow | 3-Year Mean |
| 1961 | -283996800000 | 311.9 |
|
| 1962 | -252460800000 | 922.2 |
|
| 1963 | -220924800000 | 978.7 |
737.6 |
| 1964 | -189388800000 | 444.4 |
781.8 |
| 1965 | -157766400000 | 1334.8 |
919.3 |
| 1966 | -126230400000 | 671.1 |
816.8 |
| 1967 | -94694400000 | 1687.0 |
1231.0 |
| 1968 | -63158400000 | 416.8 |
925.0 |
| 1969 | -31536000000 | 2207.8 |
1437.2 |
| 1970 | 0000 | 857.8 |
1160.8 |
| 1971 | 31536000000 | 708.0 |
1257.9 |
| 1972 | 63072000000 | 552.0 |
705.9 |
| 1973 | 94694400000 | 1109.6 |
789.9 |
| 1974 | 126230400000 | 1171.2 |
944.3 |
| 1975 | 157766400000 | 1102.8 |
1127.9 |
| 1976 | 189302400000 | 279.2 |
851.1 |
| 1977 | 220924800000 | 131.1 |
504.4 |
| 1978 | 252460800000 | 1728.5 |
713.0 |
| 1979 | 283996800000 | 1052.0 |
970.6 |
| 1980 | 315532800000 | 1615.1 |
1465.2 |
| 1981 | 347155200000 | 475.1 |
1047.4 |
| 1982 | 378691200000 | 1971.3 |
1353.9 |
| 1983 | 410227200000 | 2835.6 |
1760.7 |
| 1984 | 441763200000 | 1177.3 |
1994.7 |
| 1985 | 473385600000 | 549.8 |
1520.9 |
| 1986 | 504921600000 | 1551.4 |
1092.8 |
| 1987 | 536457600000 | 297.4 |
799.5 |
| 1988 | 567993600000 | 377.8 |
742.2 |
| 1989 | 599616000000 | 523.9 |
399.7 |
| 1990 | 631152000000 | 370.9 |
424.2 |
| 1991 | 662688000000 | 517.6 |
470.8 |
| 1992 | 694224000000 | 431.6 |
440.0 |
| 1993 | 725846400000 | 1422.0 |
790.4 |
| 1994 | 757382400000 | 324.9 |
726.1 |
| 1995 | 788918400000 | 2137.9 |
1294.9 |
| 1996 | 820454400000 | 1144.6 |
1202.5 |
| 1997 | 852076800000 | 1723.1 |
1668.5 |
| 1998 | 883612800000 | 1806.1 |
1557.9 |
| 1999 | 915148800000 | 879.2 |
1469.4 |
| 2000 | 946684800000 | 939.0 |
1208.1 |
| 2001 | 978307200000 | 508.8 |
775.6 |
| 2002 | 1009843200000 | 621.1 |
689.6 |
| 2003 | 1041379200000 | 770.3 |
633.4 |
| 2004 | 1072915200000 | 552.0 |
647.8 |
| 2005 | 1104537600000 | 1650.7 |
991.0 |
| 2006 | 1136073600000 | 1700.4 |
1301.0 |
| 2007 | 1167609600000 | 335.5 |
1228.8 |
| 2008 | 1199145600000 | 573.4 |
869.8 |
| 2009 | 1230768000000 | 786.9 |
565.3 |
| 2010 | 1262304000000 | 1031.6 |
797.3 |
| 2011 | 1293840000000 | 1902.4 |
1240.3 |
| 2012 | 1325376000000 | 410.4 |
1114.8 |
| 2013 | 1356998400000 | 464.3 |
925.7 |
| 2014 | 1388534400000 | 215.7 |
363.5 |
| 2015 | 1420070400000 | 161.2 |
280.4 |
| 2016 | 1451606400000 | 838.3 |
405.1 |
| 2017 | 1483228800000 | 2480.3 |
1160.0 |
| 2018 | 1514764800000 | 716.4 |
1345.0 |
| 2019 | 1546300800000 | 1553.8 |
1583.5 |
| 2020 | 1577836800000 | 463.7 |
911.3 |
| 2021 | 1609459200000 | 272.2 |
763.2 |
| 2022 | 1640995200000 | 473.8 |
403.2 |
| 2023 | 1672531200000 | 2501.1 |
1082.4 |
| 2024 | 1704067200000 | 874.6 |
1283.2 |
| 2025 | 1735689600000 | 720.1 |
1365.3 |
| 2026 | 1767225600000 |
1065.0 |
886.6 |
| Rank | Year | | Seasonal Flow | 3-Year Mean |
| 1961 | -283996800000 | 225.3 |
|
| 1962 | -252460800000 | 655.9 |
|
| 1963 | -220924800000 | 672.4 |
517.9 |
| 1964 | -189388800000 | 307.4 |
545.2 |
| 1965 | -157766400000 | 741.6 |
573.8 |
| 1966 | -126230400000 | 401.8 |
483.6 |
| 1967 | -94694400000 | 1239.3 |
794.2 |
| 1968 | -63158400000 | 268.3 |
636.5 |
| 1969 | -31536000000 | 1387.9 |
965.2 |
| 1970 | 0000 | 454.6 |
703.6 |
| 1971 | 31536000000 | 488.5 |
777.0 |
| 1972 | 63072000000 | 353.5 |
432.2 |
| 1973 | 94694400000 | 743.4 |
528.5 |
| 1974 | 126230400000 | 766.0 |
620.9 |
| 1975 | 157766400000 | 797.1 |
768.8 |
| 1976 | 189302400000 | 155.7 |
572.9 |
| 1977 | 220924800000 | 110.4 |
354.4 |
| 1978 | 252460800000 | 1166.3 |
477.5 |
| 1979 | 283996800000 | 660.3 |
645.7 |
| 1980 | 315532800000 | 866.9 |
897.8 |
| 1981 | 347155200000 | 351.8 |
626.3 |
| 1982 | 378691200000 | 1254.9 |
824.5 |
| 1983 | 410227200000 | 1603.6 |
1070.1 |
| 1984 | 441763200000 | 536.8 |
1131.8 |
| 1985 | 473385600000 | 377.0 |
839.1 |
| 1986 | 504921600000 | 786.3 |
566.7 |
| 1987 | 536457600000 | 220.9 |
461.4 |
| 1988 | 567993600000 | 244.1 |
417.1 |
| 1989 | 599616000000 | 369.9 |
278.3 |
| 1990 | 631152000000 | 248.5 |
287.5 |
| 1991 | 662688000000 | 407.9 |
342.1 |
| 1992 | 694224000000 | 287.1 |
314.5 |
| 1993 | 725846400000 | 927.6 |
540.9 |
| 1994 | 757382400000 | 235.1 |
483.3 |
| 1995 | 788918400000 | 1375.6 |
846.1 |
| 1996 | 820454400000 | 694.2 |
768.3 |
| 1997 | 852076800000 | 580.5 |
883.4 |
| 1998 | 883612800000 | 1192.5 |
822.4 |
| 1999 | 915148800000 | 585.5 |
786.1 |
| 2000 | 946684800000 | 578.9 |
785.6 |
| 2001 | 978307200000 | 358.1 |
507.5 |
| 2002 | 1009843200000 | 426.8 |
454.6 |
| 2003 | 1041379200000 | 561.0 |
448.6 |
| 2004 | 1072915200000 | 318.7 |
435.5 |
| 2005 | 1104537600000 | 1056.7 |
645.5 |
| 2006 | 1136073600000 | 1242.9 |
872.8 |
| 2007 | 1167609600000 | 197.3 |
832.3 |
| 2008 | 1199145600000 | 397.9 |
612.7 |
| 2009 | 1230768000000 | 539.9 |
378.3 |
| 2010 | 1262304000000 | 745.8 |
561.2 |
| 2011 | 1293840000000 | 1128.7 |
804.8 |
| 2012 | 1325376000000 | 293.5 |
722.7 |
| 2013 | 1356998400000 | 256.7 |
559.6 |
| 2014 | 1388534400000 | 165.0 |
238.4 |
| 2015 | 1420070400000 | 90.2 |
170.7 |
| 2016 | 1451606400000 | 484.4 |
246.5 |
| 2017 | 1483228800000 | 1242.9 |
605.8 |
| 2018 | 1514764800000 | 439.9 |
722.4 |
| 2019 | 1546300800000 | 1027.4 |
903.4 |
| 2020 | 1577836800000 | 336.9 |
601.4 |
| 2021 | 1609459200000 | 207.0 |
523.8 |
| 2022 | 1640995200000 | 241.8 |
261.9 |
| 2023 | 1672531200000 | 1464.3 |
637.7 |
| 2024 | 1704067200000 | 647.1 |
784.4 |
| 2025 | 1735689600000 | 444.0 |
851.8 |
| 2026 | 1767225600000 |
548.9 |
546.7 |
|