|
| Rank | Year | | Annual Flow | 3-Year Mean |
| 1929 | -1293840000000 | 31.5 |
|
| 1930 | -1262304000000 | 35.6 |
|
| 1931 | -1230768000000 | 19.8 |
28.9 |
| 1932 | -1199232000000 | 56.6 |
37.3 |
| 1933 | -1167609600000 | 27.0 |
34.5 |
| 1934 | -1136073600000 | 21.5 |
35.1 |
| 1935 | -1104537600000 | 52.8 |
33.8 |
| 1936 | -1073001600000 | 55.2 |
43.2 |
| 1937 | -1041379200000 | 34.3 |
47.4 |
| 1938 | -1009843200000 | 82.8 |
57.4 |
| 1939 | -978307200000 | 38.8 |
51.9 |
| 1940 | -946771200000 | 35.8 |
52.5 |
| 1941 | -915148800000 | 42.2 |
38.9 |
| 1942 | -883612800000 | 68.9 |
49.0 |
| 1943 | -852076800000 | 78.1 |
63.1 |
| 1944 | -820540800000 | 50.8 |
66.0 |
| 1945 | -788918400000 | 68.7 |
65.9 |
| 1946 | -757382400000 | 55.0 |
58.2 |
| 1947 | -725846400000 | 34.6 |
52.8 |
| 1948 | -694310400000 | 49.1 |
46.2 |
| 1949 | -662688000000 | 57.0 |
46.9 |
| 1950 | -631152000000 | 39.2 |
48.4 |
| 1951 | -599616000000 | 62.4 |
52.8 |
| 1952 | -568080000000 | 101.7 |
67.8 |
| 1953 | -536457600000 | 77.6 |
80.6 |
| 1954 | -504921600000 | 49.0 |
76.1 |
| 1955 | -473385600000 | 40.6 |
55.7 |
| 1956 | -441849600000 | 76.3 |
55.3 |
| 1957 | -410227200000 | 78.4 |
65.1 |
| 1958 | -378691200000 | 90.2 |
81.6 |
| 1959 | -347155200000 | 38.5 |
69.0 |
| 1960 | -315619200000 | 36.5 |
55.1 |
| 1961 | -283996800000 | 29.0 |
34.7 |
| 1962 | -252460800000 | 34.7 |
33.4 |
| 1963 | -220924800000 | 65.7 |
43.2 |
| 1964 | -189388800000 | 66.1 |
55.5 |
| 1965 | -157766400000 | 90.0 |
73.9 |
| 1966 | -126230400000 | 39.0 |
65.0 |
| 1967 | -94694400000 | 56.4 |
61.8 |
| 1968 | -63158400000 | 44.6 |
46.6 |
| 1969 | -31536000000 | 81.2 |
60.7 |
| 1970 | 0000 | 66.7 |
64.2 |
| 1971 | 31536000000 | 126.6 |
91.5 |
| 1972 | 63072000000 | 92.7 |
95.3 |
| 1973 | 94694400000 | 70.9 |
96.7 |
| 1974 | 126230400000 | 77.0 |
80.2 |
| 1975 | 157766400000 | 90.3 |
79.4 |
| 1976 | 189302400000 | 50.9 |
72.7 |
| 1977 | 220924800000 | 33.9 |
58.4 |
| 1978 | 252460800000 | 48.5 |
44.4 |
| 1979 | 283996800000 | 46.9 |
43.1 |
| 1980 | 315532800000 | 62.4 |
52.6 |
| 1981 | 347155200000 | 43.9 |
51.1 |
| 1982 | 378691200000 | 70.6 |
59.0 |
| 1983 | 410227200000 | 108.5 |
74.3 |
| 1984 | 441763200000 | 132.6 |
103.9 |
| 1985 | 473385600000 | 64.1 |
101.7 |
| 1986 | 504921600000 | 78.7 |
91.8 |
| 1987 | 536457600000 | 42.9 |
61.9 |
| 1988 | 567993600000 | 34.5 |
52.0 |
| 1989 | 599616000000 | 54.8 |
44.1 |
| 1990 | 631152000000 | 34.9 |
41.4 |
| 1991 | 662688000000 | 44.7 |
44.8 |
| 1992 | 694224000000 | 27.7 |
35.7 |
| 1993 | 725846400000 | 67.7 |
46.7 |
| 1994 | 757382400000 | 43.9 |
46.4 |
| 1995 | 788918400000 | 112.3 |
74.6 |
| 1996 | 820454400000 | 100.1 |
85.4 |
| 1997 | 852076800000 | 76.0 |
96.1 |
| 1998 | 883612800000 | 115.1 |
97.1 |
| 1999 | 915148800000 | 75.8 |
89.0 |
| 2000 | 946684800000 | 43.5 |
78.1 |
| 2001 | 978307200000 | 28.9 |
49.4 |
| 2002 | 1009843200000 | 38.3 |
36.9 |
| 2003 | 1041379200000 | 51.6 |
39.6 |
| 2004 | 1072915200000 | 50.8 |
46.9 |
| 2005 | 1104537600000 | 72.3 |
58.2 |
| 2006 | 1136073600000 | 81.9 |
68.4 |
| 2007 | 1167609600000 | 36.2 |
63.5 |
| 2008 | 1199145600000 | 48.7 |
55.6 |
| 2009 | 1230768000000 | 46.1 |
43.7 |
| 2010 | 1262304000000 | 42.4 |
45.7 |
| 2011 | 1293840000000 | 98.6 |
62.3 |
| 2012 | 1325376000000 | 36.3 |
59.1 |
| 2013 | 1356998400000 | 33.3 |
56.0 |
| 2014 | 1388534400000 | 31.9 |
33.8 |
| 2015 | 1420070400000 | 31.5 |
32.2 |
| 2016 | 1451606400000 | 72.2 |
45.2 |
| 2017 | 1483228800000 | 78.0 |
60.6 |
| 2018 | 1514764800000 | 47.0 |
65.8 |
| 2019 | 1546300800000 | 85.1 |
70.1 |
| 2020 | 1577836800000 | 41.1 |
57.7 |
| 2021 | 1609459200000 | 26.9 |
51.1 |
| 2022 | 1640995200000 | 31.7 |
33.2 |
| 2023 | 1672531200000 | 54.9 |
37.8 |
| 2024 | 1704067200000 | 54.6 |
47.1 |
| 2025 | 1735689600000 | 69.2 |
59.6 |
| 2026 | 1767225600000 |
50.5 |
58.1 |
| Rank | Year | | Seasonal Flow | 3-Year Mean |
| 1929 | -1293840000000 | 16.8 |
|
| 1930 | -1262304000000 | 18.1 |
|
| 1931 | -1230768000000 | 5.0 |
13.3 |
| 1932 | -1199232000000 | 38.6 |
20.5 |
| 1933 | -1167609600000 | 13.8 |
19.1 |
| 1934 | -1136073600000 | 8.2 |
20.2 |
| 1935 | -1104537600000 | 37.8 |
19.9 |
| 1936 | -1073001600000 | 32.3 |
26.1 |
| 1937 | -1041379200000 | 18.7 |
29.6 |
| 1938 | -1009843200000 | 55.5 |
35.5 |
| 1939 | -978307200000 | 19.4 |
31.2 |
| 1940 | -946771200000 | 23.0 |
32.7 |
| 1941 | -915148800000 | 27.5 |
23.3 |
| 1942 | -883612800000 | 42.8 |
31.1 |
| 1943 | -852076800000 | 49.2 |
39.9 |
| 1944 | -820540800000 | 25.4 |
39.1 |
| 1945 | -788918400000 | 44.8 |
39.8 |
| 1946 | -757382400000 | 32.7 |
34.3 |
| 1947 | -725846400000 | 16.7 |
31.4 |
| 1948 | -694310400000 | 31.0 |
26.8 |
| 1949 | -662688000000 | 37.5 |
28.4 |
| 1950 | -631152000000 | 22.1 |
30.2 |
| 1951 | -599616000000 | 36.6 |
32.1 |
| 1952 | -568080000000 | 74.7 |
44.5 |
| 1953 | -536457600000 | 48.9 |
53.4 |
| 1954 | -504921600000 | 23.6 |
49.0 |
| 1955 | -473385600000 | 19.5 |
30.6 |
| 1956 | -441849600000 | 48.2 |
30.4 |
| 1957 | -410227200000 | 49.8 |
39.2 |
| 1958 | -378691200000 | 57.6 |
51.9 |
| 1959 | -347155200000 | 18.0 |
41.8 |
| 1960 | -315619200000 | 19.1 |
31.6 |
| 1961 | -283996800000 | 19.0 |
18.7 |
| 1962 | -252460800000 | 20.3 |
19.4 |
| 1963 | -220924800000 | 41.6 |
27.0 |
| 1964 | -189388800000 | 42.5 |
34.8 |
| 1965 | -157766400000 | 50.9 |
45.0 |
| 1966 | -126230400000 | 23.4 |
38.9 |
| 1967 | -94694400000 | 38.5 |
37.6 |
| 1968 | -63158400000 | 23.6 |
28.5 |
| 1969 | -31536000000 | 54.7 |
38.9 |
| 1970 | 0000 | 39.0 |
39.1 |
| 1971 | 31536000000 | 95.4 |
63.0 |
| 1972 | 63072000000 | 49.1 |
61.2 |
| 1973 | 94694400000 | 40.2 |
61.6 |
| 1974 | 126230400000 | 44.7 |
44.7 |
| 1975 | 157766400000 | 54.5 |
46.5 |
| 1976 | 189302400000 | 27.5 |
42.2 |
| 1977 | 220924800000 | 19.5 |
33.8 |
| 1978 | 252460800000 | 29.9 |
25.6 |
| 1979 | 283996800000 | 30.7 |
26.7 |
| 1980 | 315532800000 | 39.5 |
33.4 |
| 1981 | 347155200000 | 28.0 |
32.7 |
| 1982 | 378691200000 | 42.2 |
36.6 |
| 1983 | 410227200000 | 77.8 |
49.3 |
| 1984 | 441763200000 | 89.3 |
69.8 |
| 1985 | 473385600000 | 36.0 |
67.7 |
| 1986 | 504921600000 | 47.8 |
57.7 |
| 1987 | 536457600000 | 27.0 |
37.0 |
| 1988 | 567993600000 | 25.7 |
33.5 |
| 1989 | 599616000000 | 36.5 |
29.7 |
| 1990 | 631152000000 | 20.2 |
27.5 |
| 1991 | 662688000000 | 25.0 |
27.2 |
| 1992 | 694224000000 | 18.3 |
21.2 |
| 1993 | 725846400000 | 44.0 |
29.1 |
| 1994 | 757382400000 | 25.5 |
29.3 |
| 1995 | 788918400000 | 79.6 |
49.7 |
| 1996 | 820454400000 | 65.4 |
56.9 |
| 1997 | 852076800000 | 42.2 |
62.4 |
| 1998 | 883612800000 | 84.8 |
64.1 |
| 1999 | 915148800000 | 49.8 |
58.9 |
| 2000 | 946684800000 | 23.3 |
52.6 |
| 2001 | 978307200000 | 16.7 |
29.9 |
| 2002 | 1009843200000 | 23.5 |
21.2 |
| 2003 | 1041379200000 | 35.5 |
25.2 |
| 2004 | 1072915200000 | 30.1 |
29.7 |
| 2005 | 1104537600000 | 50.3 |
38.6 |
| 2006 | 1136073600000 | 56.7 |
45.7 |
| 2007 | 1167609600000 | 20.0 |
42.4 |
| 2008 | 1199145600000 | 34.0 |
36.9 |
| 2009 | 1230768000000 | 28.9 |
27.6 |
| 2010 | 1262304000000 | 24.6 |
29.2 |
| 2011 | 1293840000000 | 73.4 |
42.3 |
| 2012 | 1325376000000 | 22.4 |
40.2 |
| 2013 | 1356998400000 | 20.8 |
38.9 |
| 2014 | 1388534400000 | 19.4 |
20.9 |
| 2015 | 1420070400000 | 19.6 |
19.9 |
| 2016 | 1451606400000 | 50.6 |
29.9 |
| 2017 | 1483228800000 | 50.3 |
40.2 |
| 2018 | 1514764800000 | 31.3 |
44.1 |
| 2019 | 1546300800000 | 61.9 |
47.8 |
| 2020 | 1577836800000 | 25.2 |
39.5 |
| 2021 | 1609459200000 | 19.7 |
35.6 |
| 2022 | 1640995200000 | 17.5 |
20.8 |
| 2023 | 1672531200000 | 38.0 |
25.1 |
| 2024 | 1704067200000 | 40.2 |
31.9 |
| 2025 | 1735689600000 | 49.8 |
42.7 |
| 2026 | 1767225600000 |
32.4 |
40.8 |
|