|
| Rank | Year | | Annual Flow | 3-Year Mean |
| 1984 | 441763200000 | 3.3 |
|
| 1985 | 473385600000 | 1.0 |
|
| 1986 | 504921600000 | 5.9 |
3.4 |
| 1987 | 536457600000 | 0.8 |
2.6 |
| 1988 | 567993600000 | 0.2 |
2.3 |
| 1989 | 599616000000 | 1.6 |
0.9 |
| 1990 | 631152000000 | 0.3 |
0.7 |
| 1991 | 662688000000 | 1.6 |
1.2 |
| 1992 | 694224000000 | 2.0 |
1.3 |
| 1993 | 725846400000 | 14.2 |
5.9 |
| 1994 | 757382400000 | 8.0 |
8.1 |
| 1995 | 788918400000 | 17.2 |
13.1 |
| 1996 | 820454400000 | 14.1 |
13.1 |
| 1997 | 852076800000 | 19.0 |
16.8 |
| 1998 | 883612800000 | 19.6 |
17.6 |
| 1999 | 915148800000 | 8.3 |
15.6 |
| 2000 | 946684800000 | 9.9 |
12.6 |
| 2001 | 978307200000 | 1.4 |
6.5 |
| 2002 | 1009843200000 | 1.3 |
4.2 |
| 2003 | 1041379200000 | 0.7 |
1.2 |
| 2004 | 1072915200000 | 1.9 |
1.3 |
| 2005 | 1104537600000 | 14.4 |
5.7 |
| 2006 | 1136073600000 | 7.5 |
7.9 |
| 2007 | 1167609600000 | 5.5 |
9.1 |
| 2008 | 1199145600000 | 2.3 |
5.1 |
| 2009 | 1230768000000 | 0.3 |
2.7 |
| 2010 | 1262304000000 | 5.2 |
2.6 |
| 2011 | 1293840000000 | 10.9 |
5.5 |
| 2012 | 1325376000000 | 0.3 |
5.5 |
| 2013 | 1356998400000 | 0.7 |
4.0 |
| 2014 | 1388534400000 | 0.5 |
0.5 |
| 2015 | 1420070400000 | 0.0 |
0.4 |
| 2016 | 1451606400000 | 2.6 |
1.0 |
| 2017 | 1483228800000 | 18.8 |
7.1 |
| 2018 | 1514764800000 | 5.4 |
8.9 |
| 2019 | 1546300800000 | 10.2 |
11.4 |
| 2020 | 1577836800000 | 0.9 |
5.5 |
| 2021 | 1609459200000 | 0.4 |
3.8 |
| 2022 | 1640995200000 | 0.1 |
0.5 |
| 2023 | 1672531200000 | 19.4 |
6.6 |
| 2024 | 1704067200000 | 3.5 |
7.6 |
| 2025 | 1735689600000 | 2.5 |
8.4 |
| 2026 | 1767225600000 |
5.6 |
3.8 |
| Rank | Year | | Seasonal Flow | 3-Year Mean |
| 1984 | 441763200000 | 0.3 |
|
| 1985 | 473385600000 | 0.1 |
|
| 1986 | 504921600000 | 0.5 |
0.3 |
| 1987 | 536457600000 | 0.1 |
0.2 |
| 1988 | 567993600000 | 0.0 |
0.2 |
| 1989 | 599616000000 | 0.5 |
0.2 |
| 1990 | 631152000000 | 0.1 |
0.2 |
| 1991 | 662688000000 | 0.4 |
0.3 |
| 1992 | 694224000000 | 0.3 |
0.2 |
| 1993 | 725846400000 | 4.2 |
1.6 |
| 1994 | 757382400000 | 2.0 |
2.2 |
| 1995 | 788918400000 | 4.6 |
3.6 |
| 1996 | 820454400000 | 4.3 |
3.6 |
| 1997 | 852076800000 | 2.8 |
3.9 |
| 1998 | 883612800000 | 5.7 |
4.3 |
| 1999 | 915148800000 | 3.3 |
3.9 |
| 2000 | 946684800000 | 1.7 |
3.5 |
| 2001 | 978307200000 | 0.4 |
1.8 |
| 2002 | 1009843200000 | 0.1 |
0.8 |
| 2003 | 1041379200000 | 0.6 |
0.4 |
| 2004 | 1072915200000 | 0.0 |
0.2 |
| 2005 | 1104537600000 | 2.2 |
0.9 |
| 2006 | 1136073600000 | 4.4 |
2.2 |
| 2007 | 1167609600000 | 3.0 |
3.2 |
| 2008 | 1199145600000 | 0.1 |
2.5 |
| 2009 | 1230768000000 | 0.1 |
1.1 |
| 2010 | 1262304000000 | 1.1 |
0.4 |
| 2011 | 1293840000000 | 1.8 |
1.0 |
| 2012 | 1325376000000 | 0.1 |
1.0 |
| 2013 | 1356998400000 | 0.1 |
0.7 |
| 2014 | 1388534400000 | 0.1 |
0.1 |
| 2015 | 1420070400000 | 0.0 |
0.1 |
| 2016 | 1451606400000 | 0.4 |
0.2 |
| 2017 | 1483228800000 | 0.8 |
0.4 |
| 2018 | 1514764800000 | 0.2 |
0.5 |
| 2019 | 1546300800000 | 1.3 |
0.8 |
| 2020 | 1577836800000 | 0.5 |
0.7 |
| 2021 | 1609459200000 | 0.0 |
0.6 |
| 2022 | 1640995200000 | 0.0 |
0.2 |
| 2023 | 1672531200000 | 2.0 |
0.7 |
| 2024 | 1704067200000 | 0.7 |
0.9 |
| 2025 | 1735689600000 | 0.1 |
0.9 |
| 2026 | 1767225600000 |
0.6 |
0.5 |
|