| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 53.57 | 80.17 | 44.11 |
| 2024 | 41.97 | 82.02 | 14.65 |
| 2023 | 13.03 | 28.32 | 8.94 |
| 2022 | 12.42 | 19.75 | 8.95 |
| 2021 | 16.12 | 22.07 | 13.34 |
| 2020 | 18.49 | 29.7 | 13.65 |
| 2019 | 16.39 | 21.4 | 13.45 |
| 2018 | 21.7 | 34.2 | 13.65 |
| 2017 | 49.68 | 95.48 | 27.96 |
| 2016 | 28.08 | 46.49 | 17.94 |
| 2015 | 20.48 | 33.88 | 12.48 |
| 2014 | 12.51 | 16.59 | 10.44 |
| 2013 | 15.73 | 45.15 | 9.03 |
| 2012 | 12.79 | 18.42 | 9.15 |
| 2011 | 14.61 | 20.37 | 8.67 |
| 2010 | 11.82 | 14.49 | 5.67 |
| 2009 | 4 | 6.29 | 1.64 |
| 2008 | 3.65 | 7.26 | 1.19 |
| 2007 | 5.36 | 7.99 | 1.27 |
| 2006 | 1.53 | 2.01 | 0.9 |
| 2005 | 0.94 | 1.26 | 0.67 |
| 2004 | 1.6 | 2.35 | 0.98 |
| 2003 | 2.26 | 2.67 | 1.76 |
| 2002 | 3.51 | 3.99 | 2.64 |
| 2001 | 4.29 | 5.49 | 3.12 |
| 2000 | 4.17 | 5.65 | 2.63 |
| 1999 | 3.45 | 4.24 | 2.68 |
| 1998 | 4.94 | 6.37 | 3.55 |