|
| Rank | Year | | Annual Flow | 3-Year Mean |
| 1934 | -1136073600000 | 65.9 |
|
| 1935 | -1104537600000 | 173.2 |
|
| 1936 | -1073001600000 | 148.9 |
129.3 |
| 1937 | -1041379200000 | 123.5 |
148.5 |
| 1938 | -1009843200000 | 408.0 |
226.8 |
| 1939 | -978307200000 | 62.8 |
198.1 |
| 1940 | -946771200000 | 244.4 |
238.4 |
| 1941 | -915148800000 | 263.8 |
190.4 |
| 1942 | -883612800000 | 283.9 |
264.0 |
| 1943 | -852076800000 | 229.1 |
258.9 |
| 1944 | -820540800000 | 102.3 |
205.1 |
| 1945 | -788918400000 | 150.1 |
160.5 |
| 1946 | -757382400000 | 172.5 |
141.6 |
| 1947 | -725846400000 | 95.1 |
139.2 |
| 1948 | -694310400000 | 164.1 |
143.9 |
| 1949 | -662688000000 | 103.9 |
121.0 |
| 1950 | -631152000000 | 165.3 |
144.4 |
| 1951 | -599616000000 | 234.4 |
167.9 |
| 1952 | -568080000000 | 380.8 |
260.2 |
| 1953 | -536457600000 | 223.7 |
279.6 |
| 1954 | -504921600000 | 182.3 |
262.3 |
| 1955 | -473385600000 | 89.9 |
165.3 |
| 1956 | -441849600000 | 352.5 |
208.2 |
| 1957 | -410227200000 | 139.4 |
193.9 |
| 1958 | -378691200000 | 316.6 |
269.5 |
| 1959 | -347155200000 | 104.8 |
187.0 |
| 1960 | -315619200000 | 119.6 |
180.3 |
| 1961 | -283996800000 | 91.6 |
105.3 |
| 1962 | -252460800000 | 154.0 |
121.7 |
| 1963 | -220924800000 | 279.0 |
174.9 |
| 1964 | -189388800000 | 92.0 |
175.0 |
| 1965 | -157766400000 | 300.9 |
224.0 |
| 1966 | -126230400000 | 124.3 |
172.4 |
| 1967 | -94694400000 | 291.8 |
239.0 |
| 1968 | -63158400000 | 137.9 |
184.7 |
| 1969 | -31536000000 | 314.0 |
247.9 |
| 1970 | 0000 | 272.6 |
241.5 |
| 1971 | 31536000000 | 254.8 |
280.5 |
| 1972 | 63072000000 | 129.6 |
219.0 |
| 1973 | 94694400000 | 204.6 |
196.3 |
| 1974 | 126230400000 | 398.0 |
244.1 |
| 1975 | 157766400000 | 213.2 |
271.9 |
| 1976 | 189302400000 | 56.5 |
222.6 |
| 1977 | 220924800000 | 24.7 |
98.1 |
| 1978 | 252460800000 | 251.3 |
110.8 |
| 1979 | 283996800000 | 123.8 |
133.3 |
| 1980 | 315532800000 | 249.2 |
208.1 |
| 1981 | 347155200000 | 97.0 |
156.7 |
| 1982 | 378691200000 | 416.0 |
254.1 |
| 1983 | 410227200000 | 455.7 |
322.9 |
| 1984 | 441763200000 | 253.5 |
375.0 |
| 1985 | 473385600000 | 97.0 |
268.7 |
| 1986 | 504921600000 | 302.4 |
217.6 |
| 1987 | 536457600000 | 72.4 |
157.2 |
| 1988 | 567993600000 | 57.1 |
144.0 |
| 1989 | 599616000000 | 150.0 |
93.2 |
| 1990 | 631152000000 | 81.6 |
96.3 |
| 1991 | 662688000000 | 76.7 |
102.8 |
| 1992 | 694224000000 | 58.7 |
72.3 |
| 1993 | 725846400000 | 280.9 |
138.8 |
| 1994 | 757382400000 | 66.8 |
135.5 |
| 1995 | 788918400000 | 464.1 |
270.6 |
| 1996 | 820454400000 | 246.6 |
259.2 |
| 1997 | 852076800000 | 336.4 |
349.0 |
| 1998 | 883612800000 | 320.9 |
301.3 |
| 1999 | 915148800000 | 224.4 |
293.9 |
| 2000 | 946684800000 | 183.3 |
242.9 |
| 2001 | 978307200000 | 64.1 |
157.3 |
| 2002 | 1009843200000 | 98.9 |
115.5 |
| 2003 | 1041379200000 | 182.5 |
115.2 |
| 2004 | 1072915200000 | 147.7 |
143.0 |
| 2005 | 1104537600000 | 178.5 |
169.5 |
| 2006 | 1136073600000 | 352.2 |
226.1 |
| 2007 | 1167609600000 | 82.4 |
204.4 |
| 2008 | 1199145600000 | 72.5 |
169.0 |
| 2009 | 1230768000000 | 116.4 |
90.4 |
| 2010 | 1262304000000 | 129.1 |
106.0 |
| 2011 | 1293840000000 | 296.5 |
180.7 |
| 2012 | 1325376000000 | 106.2 |
177.3 |
| 2013 | 1356998400000 | 115.4 |
172.7 |
| 2014 | 1388534400000 | 46.8 |
89.5 |
| 2015 | 1420070400000 | 63.7 |
75.3 |
| 2016 | 1451606400000 | 173.9 |
94.8 |
| 2017 | 1483228800000 | 450.4 |
229.3 |
| 2018 | 1514764800000 | 122.7 |
249.0 |
| 2019 | 1546300800000 | 276.8 |
283.3 |
| 2020 | 1577836800000 | 77.1 |
158.9 |
| 2021 | 1609459200000 | 39.9 |
131.3 |
| 2022 | 1640995200000 | 105.4 |
74.2 |
| 2023 | 1672531200000 | 277.6 |
141.0 |
| 2024 | 1704067200000 | 180.2 |
187.7 |
| 2025 | 1735689600000 | 204.4 |
220.7 |
| 2026 | 1767225600000 |
211.4 |
198.7 |
| Rank | Year | | Seasonal Flow | 3-Year Mean |
| 1934 | -1136073600000 | 14.0 |
|
| 1935 | -1104537600000 | 123.3 |
|
| 1936 | -1073001600000 | 51.3 |
62.9 |
| 1937 | -1041379200000 | 76.2 |
83.6 |
| 1938 | -1009843200000 | 198.3 |
108.6 |
| 1939 | -978307200000 | 20.7 |
98.4 |
| 1940 | -946771200000 | 61.8 |
93.6 |
| 1941 | -915148800000 | 87.9 |
56.8 |
| 1942 | -883612800000 | 124.6 |
91.4 |
| 1943 | -852076800000 | 63.3 |
91.9 |
| 1944 | -820540800000 | 53.0 |
80.3 |
| 1945 | -788918400000 | 56.5 |
57.6 |
| 1946 | -757382400000 | 55.6 |
55.0 |
| 1947 | -725846400000 | 26.9 |
46.3 |
| 1948 | -694310400000 | 115.9 |
66.1 |
| 1949 | -662688000000 | 56.1 |
66.3 |
| 1950 | -631152000000 | 82.1 |
84.7 |
| 1951 | -599616000000 | 53.0 |
63.7 |
| 1952 | -568080000000 | 215.3 |
116.8 |
| 1953 | -536457600000 | 96.8 |
121.7 |
| 1954 | -504921600000 | 76.8 |
129.6 |
| 1955 | -473385600000 | 45.4 |
73.0 |
| 1956 | -441849600000 | 113.2 |
78.5 |
| 1957 | -410227200000 | 50.9 |
69.9 |
| 1958 | -378691200000 | 143.6 |
102.6 |
| 1959 | -347155200000 | 29.6 |
74.7 |
| 1960 | -315619200000 | 34.0 |
69.1 |
| 1961 | -283996800000 | 34.5 |
32.7 |
| 1962 | -252460800000 | 76.9 |
48.4 |
| 1963 | -220924800000 | 115.6 |
75.7 |
| 1964 | -189388800000 | 39.8 |
77.4 |
| 1965 | -157766400000 | 94.0 |
83.1 |
| 1966 | -126230400000 | 53.2 |
62.3 |
| 1967 | -94694400000 | 129.2 |
92.1 |
| 1968 | -63158400000 | 39.2 |
73.9 |
| 1969 | -31536000000 | 139.3 |
102.6 |
| 1970 | 0000 | 37.2 |
71.9 |
| 1971 | 31536000000 | 117.3 |
97.9 |
| 1972 | 63072000000 | 44.4 |
66.3 |
| 1973 | 94694400000 | 75.2 |
79.0 |
| 1974 | 126230400000 | 106.0 |
75.2 |
| 1975 | 157766400000 | 118.6 |
99.9 |
| 1976 | 189302400000 | 15.8 |
80.1 |
| 1977 | 220924800000 | 7.6 |
47.3 |
| 1978 | 252460800000 | 79.5 |
34.3 |
| 1979 | 283996800000 | 63.6 |
50.3 |
| 1980 | 315532800000 | 59.1 |
67.4 |
| 1981 | 347155200000 | 27.4 |
50.0 |
| 1982 | 378691200000 | 165.7 |
84.1 |
| 1983 | 410227200000 | 171.7 |
121.6 |
| 1984 | 441763200000 | 48.1 |
128.5 |
| 1985 | 473385600000 | 37.6 |
85.8 |
| 1986 | 504921600000 | 40.3 |
42.0 |
| 1987 | 536457600000 | 17.7 |
31.9 |
| 1988 | 567993600000 | 17.0 |
25.0 |
| 1989 | 599616000000 | 41.8 |
25.5 |
| 1990 | 631152000000 | 28.6 |
29.1 |
| 1991 | 662688000000 | 38.8 |
36.4 |
| 1992 | 694224000000 | 18.1 |
28.5 |
| 1993 | 725846400000 | 122.4 |
59.8 |
| 1994 | 757382400000 | 20.2 |
53.6 |
| 1995 | 788918400000 | 194.5 |
112.4 |
| 1996 | 820454400000 | 90.3 |
101.6 |
| 1997 | 852076800000 | 37.4 |
107.4 |
| 1998 | 883612800000 | 128.8 |
85.5 |
| 1999 | 915148800000 | 68.3 |
78.2 |
| 2000 | 946684800000 | 54.5 |
83.8 |
| 2001 | 978307200000 | 22.5 |
48.4 |
| 2002 | 1009843200000 | 32.0 |
36.3 |
| 2003 | 1041379200000 | 71.3 |
41.9 |
| 2004 | 1072915200000 | 36.4 |
46.6 |
| 2005 | 1104537600000 | 87.1 |
64.9 |
| 2006 | 1136073600000 | 157.3 |
93.6 |
| 2007 | 1167609600000 | 20.8 |
88.4 |
| 2008 | 1199145600000 | 30.6 |
69.6 |
| 2009 | 1230768000000 | 40.8 |
30.7 |
| 2010 | 1262304000000 | 71.2 |
47.5 |
| 2011 | 1293840000000 | 159.9 |
90.6 |
| 2012 | 1325376000000 | 50.5 |
93.9 |
| 2013 | 1356998400000 | 21.6 |
77.3 |
| 2014 | 1388534400000 | 14.9 |
29.0 |
| 2015 | 1420070400000 | 7.5 |
14.7 |
| 2016 | 1451606400000 | 35.5 |
19.3 |
| 2017 | 1483228800000 | 123.6 |
55.5 |
| 2018 | 1514764800000 | 43.4 |
67.5 |
| 2019 | 1546300800000 | 119.2 |
95.4 |
| 2020 | 1577836800000 | 33.5 |
65.3 |
| 2021 | 1609459200000 | 11.8 |
54.8 |
| 2022 | 1640995200000 | 33.3 |
26.2 |
| 2023 | 1672531200000 | 126.1 |
57.1 |
| 2024 | 1704067200000 | 70.5 |
76.6 |
| 2025 | 1735689600000 | 51.5 |
82.7 |
| 2026 | 1767225600000 |
49.3 |
57.1 |
|