| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2023 | 45.83 | 55.62 | 27.81 |
| 2022 | 53.03 | 68.92 | 40.96 |
| 2021 | 94.21 | 146.98 | 62.62 |
| 2020 | 60.12 | 120.97 | 36.6 |
| 2019 | 35.17 | 45.3 | 20.42 |
| 2018 | 39.76 | 59.04 | 19.42 |
| 2017 | 44.3 | 57.85 | 32.18 |
| 2016 | 35.66 | 51.91 | 24.97 |
| 2015 | 74.43 | 126.75 | 43.9 |
| 2014 | 38.11 | 118.59 | 10.62 |
| 2013 | 16.12 | 27.96 | 10.14 |
| 2012 | 37.43 | 46.66 | 21.49 |
| 2011 | 44.73 | 58.96 | 32.85 |
| 2010 | 48.74 | 69.86 | 37.83 |
| 2009 | 30.32 | 46.63 | 15.65 |
| 2008 | 27.6 | 59.74 | 13.85 |
| 2007 | 57.94 | 85.87 | 44.41 |
| 2006 | 35.96 | 59.32 | 25.26 |
| 2005 | 27.3 | 33.04 | 22.15 |
| 2004 | 52.96 | 91.33 | 29.3 |
| 2003 | 104.55 | 194.09 | 70.74 |
| 2002 | 125.59 | 144.95 | 82.94 |
| 2001 | 268.72 | 420.13 | 144.1 |
| 2000 | 726.39 | 948.63 | 507.63 |
| 1999 | 535.53 | 798.06 | 375.57 |
| 1998 | 74.79 | 106.88 | 47.82 |
| 1997 | 73.14 | 97.78 | 52.33 |