| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 13.53 | 21.17 | 10.34 |
| 2024 | 22.48 | 40.61 | 10.31 |
| 2023 | 17.18 | 36.65 | 4.24 |
| 2022 | 6.45 | 9.13 | 4.41 |
| 2021 | 17.26 | 37.77 | 7.01 |
| 2020 | 10.59 | 15.35 | 7.15 |
| 2019 | 6.61 | 9.75 | 4.41 |
| 2018 | 12.8 | 31.86 | 4.45 |
| 2017 | 35.35 | 80.23 | 14.6 |
| 2016 | 38.23 | 71.95 | 16.75 |
| 2015 | 27.52 | 53.13 | 16.91 |
| 2014 | 20.36 | 25.95 | 16.28 |
| 2013 | 16.58 | 20.33 | 12.89 |
| 2012 | 17.16 | 23.82 | 12.62 |
| 2011 | 40.43 | 82.25 | 20.91 |
| 2010 | 46.69 | 70.46 | 29 |
| 2009 | 32.76 | 66.08 | 10.15 |
| 2008 | 28.25 | 75.12 | 8.37 |
| 2007 | 48.16 | 72.46 | 21.71 |
| 2006 | 17.92 | 25.38 | 8.65 |
| 2005 | 12.32 | 18.39 | 8.04 |
| 2004 | 24.01 | 36.59 | 17.66 |
| 2003 | 27.65 | 33.69 | 22.83 |
| 2002 | 37.27 | 40.7 | 29.15 |
| 2001 | 48.62 | 62.04 | 33.64 |
| 2000 | 38.38 | 49.2 | 28.07 |
| 1999 | 30.7 | 42.38 | 25.19 |