|
| Rank | Year | | Annual Flow | 3-Year Mean |
| 1945 | -788918400000 | 2384.1 |
|
| 1946 | -757382400000 | 2651.3 |
|
| 1947 | -725846400000 | 1924.1 |
2319.9 |
| 1948 | -694310400000 | 2572.8 |
2382.7 |
| 1949 | -662688000000 | 2091.4 |
2196.1 |
| 1950 | -631152000000 | 2215.6 |
2293.3 |
| 1951 | -599616000000 | 2757.3 |
2354.8 |
| 1952 | -568080000000 | 3842.0 |
2938.3 |
| 1953 | -536457600000 | 3038.3 |
3212.5 |
| 1954 | -504921600000 | 2780.9 |
3220.4 |
| 1955 | -473385600000 | 2063.0 |
2627.4 |
| 1956 | -441849600000 | 4013.6 |
2952.5 |
| 1957 | -410227200000 | 2651.4 |
2909.3 |
| 1958 | -378691200000 | 3818.7 |
3494.6 |
| 1959 | -347155200000 | 2295.0 |
2921.7 |
| 1960 | -315619200000 | 2365.7 |
2826.5 |
| 1961 | -283996800000 | 2331.1 |
2330.6 |
| 1962 | -252460800000 | 2376.6 |
2357.8 |
| 1963 | -220924800000 | 3404.1 |
2704.0 |
| 1964 | -189388800000 | 2097.9 |
2626.2 |
| 1965 | -157766400000 | | |
|---|
| 1966 | -126230400000 | 2789.6 |
|
| 1967 | -94694400000 | 4035.6 |
|
| 1968 | -63158400000 | 3253.5 |
3359.6 |
| 1969 | -31536000000 | 4371.0 |
3886.7 |
| 1970 | 0000 | 4765.5 |
4130.0 |
| 1971 | 31536000000 | 4552.3 |
4562.9 |
| 1972 | 63072000000 | 3605.8 |
4307.9 |
| 1973 | 94694400000 | 3555.3 |
3904.4 |
| 1974 | 126230400000 | 5569.4 |
4243.5 |
| 1975 | 157766400000 | 3917.0 |
4347.2 |
| 1976 | 189302400000 | 2739.6 |
4075.3 |
| 1977 | 220924800000 | 2147.9 |
2934.8 |
| 1978 | 252460800000 | 3667.9 |
2851.8 |
| 1979 | 283996800000 | 2589.7 |
2801.8 |
| 1980 | 315532800000 | 3779.2 |
3345.6 |
| 1981 | 347155200000 | 2486.7 |
2951.9 |
| 1982 | 378691200000 | 4976.3 |
3747.4 |
| 1983 | 410227200000 | 5161.2 |
4208.1 |
| 1984 | 441763200000 | 3998.1 |
4711.9 |
| 1985 | 473385600000 | 3439.8 |
4199.7 |
| 1986 | 504921600000 | 4484.9 |
3974.2 |
| 1987 | 536457600000 | 2765.6 |
3563.4 |
| 1988 | 567993600000 | 2519.3 |
3256.6 |
| 1989 | 599616000000 | 2944.6 |
2743.2 |
| 1990 | 631152000000 | 2283.0 |
2582.3 |
| 1991 | 662688000000 | 2064.3 |
2430.6 |
| 1992 | 694224000000 | 2038.6 |
2128.6 |
| 1993 | 725846400000 | 3714.9 |
2605.9 |
| 1994 | 757382400000 | 2165.5 |
2639.6 |
| 1995 | 788918400000 | 5027.2 |
3635.9 |
| 1996 | 820454400000 | 4076.6 |
3756.4 |
| 1997 | 852076800000 | 4529.2 |
4544.3 |
| 1998 | 883612800000 | 5133.3 |
4579.7 |
| 1999 | 915148800000 | 4470.3 |
4710.9 |
| 2000 | 946684800000 | 3458.1 |
4353.9 |
| 2001 | 978307200000 | 2527.8 |
3485.4 |
| 2002 | 1009843200000 | 2862.4 |
2949.4 |
| 2003 | 1041379200000 | 3203.2 |
2864.5 |
| 2004 | 1072915200000 | 3142.9 |
3069.5 |
| 2005 | 1104537600000 | 3052.7 |
3132.9 |
| 2006 | 1136073600000 | 4695.8 |
3630.5 |
| 2007 | 1167609600000 | 2627.0 |
3458.5 |
| 2008 | 1199145600000 | 2483.1 |
3268.6 |
| 2009 | 1230768000000 | 2461.1 |
2523.7 |
| 2010 | 1262304000000 | 2670.2 |
2538.1 |
| 2011 | 1293840000000 | 3637.5 |
2923.0 |
| 2012 | 1325376000000 | 2511.5 |
2939.8 |
| 2013 | 1356998400000 | 2568.3 |
2905.8 |
| 2014 | 1388534400000 | 1988.6 |
2356.2 |
| 2015 | 1420070400000 | 2065.7 |
2207.6 |
| 2016 | 1451606400000 | 2934.5 |
2329.6 |
| 2017 | 1483228800000 | 5038.9 |
3346.4 |
| 2018 | 1514764800000 | 2634.3 |
3535.9 |
| 2019 | 1546300800000 | 3901.5 |
3858.2 |
| 2020 | 1577836800000 | 2310.4 |
2948.7 |
| 2021 | 1609459200000 | 2407.8 |
2873.2 |
| 2022 | 1640995200000 | 2076.7 |
2265.0 |
| 2023 | 1672531200000 | 3060.3 |
2514.9 |
| 2024 | 1704067200000 | 2252.4 |
2463.1 |
| 2025 | 1735689600000 | 3149.3 |
2820.6 |
| 2026 | 1767225600000 |
2644.5 |
2682.1 |
| Rank | Year | | Seasonal Flow | 3-Year Mean |
| 1945 | -788918400000 | 828.3 |
|
| 1946 | -757382400000 | 782.8 |
|
| 1947 | -725846400000 | 622.0 |
744.4 |
| 1948 | -694310400000 | 1267.6 |
890.8 |
| 1949 | -662688000000 | 766.2 |
885.3 |
| 1950 | -631152000000 | 781.8 |
938.5 |
| 1951 | -599616000000 | 793.5 |
780.5 |
| 1952 | -568080000000 | 1661.7 |
1079.0 |
| 1953 | -536457600000 | 1103.7 |
1186.3 |
| 1954 | -504921600000 | 927.2 |
1230.9 |
| 1955 | -473385600000 | 743.6 |
924.8 |
| 1956 | -441849600000 | 1187.8 |
952.9 |
| 1957 | -410227200000 | 892.7 |
941.4 |
| 1958 | -378691200000 | 1309.4 |
1130.0 |
| 1959 | -347155200000 | 686.9 |
963.0 |
| 1960 | -315619200000 | 725.0 |
907.1 |
| 1961 | -283996800000 | 743.4 |
718.5 |
| 1962 | -252460800000 | 773.3 |
747.2 |
| 1963 | -220924800000 | 1418.6 |
978.4 |
| 1964 | -189388800000 | 728.6 |
973.5 |
| 1965 | -157766400000 | | |
|---|
| 1966 | -126230400000 | 1035.3 |
|
| 1967 | -94694400000 | 1604.7 |
|
| 1968 | -63158400000 | 976.8 |
1205.6 |
| 1969 | -31536000000 | 1674.6 |
1418.7 |
| 1970 | 0000 | 1147.9 |
1266.5 |
| 1971 | 31536000000 | 1703.1 |
1508.5 |
| 1972 | 63072000000 | 1147.3 |
1332.7 |
| 1973 | 94694400000 | 1094.7 |
1315.0 |
| 1974 | 126230400000 | 1735.4 |
1325.8 |
| 1975 | 157766400000 | 1536.4 |
1455.5 |
| 1976 | 189302400000 | 830.4 |
1367.4 |
| 1977 | 220924800000 | 637.2 |
1001.3 |
| 1978 | 252460800000 | 1175.5 |
881.0 |
| 1979 | 283996800000 | 900.8 |
904.5 |
| 1980 | 315532800000 | 988.4 |
1021.6 |
| 1981 | 347155200000 | 800.4 |
896.5 |
| 1982 | 378691200000 | 1680.3 |
1156.3 |
| 1983 | 410227200000 | 1738.4 |
1406.3 |
| 1984 | 441763200000 | 1208.0 |
1542.2 |
| 1985 | 473385600000 | 1058.9 |
1335.1 |
| 1986 | 504921600000 | 1187.7 |
1151.5 |
| 1987 | 536457600000 | 821.5 |
1022.7 |
| 1988 | 567993600000 | 795.5 |
934.9 |
| 1989 | 599616000000 | 969.0 |
862.0 |
| 1990 | 631152000000 | 725.9 |
830.2 |
| 1991 | 662688000000 | 748.0 |
814.3 |
| 1992 | 694224000000 | 613.4 |
695.8 |
| 1993 | 725846400000 | 1417.7 |
926.4 |
| 1994 | 757382400000 | 657.1 |
896.1 |
| 1995 | 788918400000 | 1949.5 |
1341.4 |
| 1996 | 820454400000 | 1337.4 |
1314.6 |
| 1997 | 852076800000 | 1012.0 |
1432.9 |
| 1998 | 883612800000 | 2011.9 |
1453.7 |
| 1999 | 915148800000 | 1385.7 |
1469.8 |
| 2000 | 946684800000 | 1034.7 |
1477.4 |
| 2001 | 978307200000 | 802.7 |
1074.4 |
| 2002 | 1009843200000 | 878.7 |
905.4 |
| 2003 | 1041379200000 | 1209.9 |
963.8 |
| 2004 | 1072915200000 | 916.8 |
1001.8 |
| 2005 | 1104537600000 | 1307.3 |
1144.7 |
| 2006 | 1136073600000 | 1767.4 |
1330.5 |
| 2007 | 1167609600000 | 762.1 |
1279.0 |
| 2008 | 1199145600000 | 792.9 |
1107.5 |
| 2009 | 1230768000000 | 727.4 |
760.8 |
| 2010 | 1262304000000 | 985.5 |
835.2 |
| 2011 | 1293840000000 | 1475.3 |
1062.7 |
| 2012 | 1325376000000 | 901.7 |
1120.8 |
| 2013 | 1356998400000 | 787.8 |
1054.9 |
| 2014 | 1388534400000 | 654.4 |
781.3 |
| 2015 | 1420070400000 | 593.8 |
678.7 |
| 2016 | 1451606400000 | 897.4 |
715.2 |
| 2017 | 1483228800000 | 1466.8 |
986.0 |
| 2018 | 1514764800000 | 918.1 |
1094.1 |
| 2019 | 1546300800000 | 1542.5 |
1309.1 |
| 2020 | 1577836800000 | 757.2 |
1072.6 |
| 2021 | 1609459200000 | 760.4 |
1020.0 |
| 2022 | 1640995200000 | 533.2 |
683.6 |
| 2023 | 1672531200000 | 1779.2 |
1024.3 |
| 2024 | 1704067200000 | 1017.0 |
1109.8 |
| 2025 | 1735689600000 | 943.0 |
1246.4 |
| 2026 | 1767225600000 |
850.6 |
936.8 |
|