| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 0 | ||
| 2024 | 0 | ||
| 2023 | 0 | ||
| 2022 | 0 | ||
| 2021 | 0 | ||
| 2020 | 0 | ||
| 2019 | 0 | ||
| 2018 | 0 | -3.59 | |
| 2017 | 0 | -5.85 | |
| 2016 | 0 | -106.51 | |
| 2015 | 1251.1 | 2724.14 | 676.57 |
| 2014 | 2512.67 | 7366.51 | 619.43 |
| 2013 | 317.38 | 345.93 | 292.92 |
| 2012 | 332.38 | 406.97 | 272.87 |
| 2011 | 0 | -42.26 | |
| 2010 | 532.77 | 923.75 | 306.8 |
| 2009 | 260.89 | 320.97 | 197.75 |
| 2008 | 105.5 | 307.7 | 19.44 |
| 2007 | 441.34 | 1892.6 | 16.62 |
| 2006 | 3740.57 | 18323.9 | 245.68 |
| 2005 | 133.82 | 288.96 | 39.14 |
| 2004 | 49.82 | 68.98 | 29.71 |
| 2003 | 58.65 | 77.15 | 45.37 |
| 2002 | 57.56 | 73.73 | 45.13 |
| 2001 | 89.82 | 157.19 | 42.01 |
| 2000 | 356.85 | 685.79 | 179.64 |
| 1999 | 228.21 | 391.52 | 185.97 |
| 1998 | 29.7 | 46.72 | 23.03 |
| 1997 | 28.37 | 38.63 | 19.29 |