| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 253 | 356.35 | 124.67 |
| 2024 | 148.17 | 430.77 | 56.85 |
| 2023 | 86.91 | 120.79 | 63.41 |
| 2022 | 113.54 | 197.19 | 82.33 |
| 2021 | 0 | ||
| 2020 | 11.01 | 12.28 | 8.9 |
| 2019 | 11.35 | 17.68 | 7.79 |
| 2018 | 9.34 | 15.77 | 4.81 |
| 2017 | 7.6 | 10.15 | 5.12 |
| 2016 | 13.38 | 22.53 | 8.79 |
| 2015 | 21.06 | 37.58 | 14.29 |
| 2014 | 23.84 | 72.41 | 17.07 |
| 2013 | 17.27 | 20.56 | 11.34 |
| 2012 | 0 | ||
| 2011 | 0 | ||
| 2010 | 0 | ||
| 2009 | 0 | ||
| 2008 | 0 | ||
| 2007 | 2.86 | 4.24 | 1.65 |
| 2006 | 1.7 | 2.62 | 0.77 |
| 2005 | 0.95 | 1.2 | 0.66 |
| 2004 | 1.78 | 2.41 | 1.18 |
| 2003 | 1.69 | 2.22 | 1.46 |
| 2002 | 2.38 | 3.1 | 1.72 |
| 2001 | 3.98 | 4.99 | 2.76 |
| 2000 | 4.04 | 4.77 | 3 |
| 1999 | 4.18 | 5.9 | 3.05 |
| 1998 | 9.45 | 12.25 | 6.13 |
| 1997 | 10.21 | 14.34 | 5.01 |