| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2020 | 79.56 | 82.37 | 76.13 |
| 2019 | 54.98 | 77.51 | 33.01 |
| 2018 | 52.7 | 106.38 | 32.53 |
| 2017 | 119.7 | 141.6 | 89.29 |
| 2016 | 157.32 | 212.51 | 119 |
| 2015 | 182.93 | 348.31 | 108.56 |
| 2014 | 90.11 | 146.97 | 46.11 |
| 2013 | 58.89 | 76.77 | 45.39 |
| 2012 | 33.63 | 48.11 | 23.89 |
| 2011 | 48.73 | 67.53 | 32.51 |
| 2010 | 50.03 | 68.82 | 39.38 |
| 2009 | 649.89 | 1471.25 | 15.71 |
| 2008 | 23.84 | 44.97 | 10.82 |
| 2007 | 40.8 | 50.71 | 28.78 |
| 2006 | 31.24 | 37.64 | 25.27 |
| 2005 | 24.26 | 31.22 | 11.38 |
| 2004 | 35.21 | 50.6 | 22.26 |
| 2003 | 42.35 | 54.18 | 26.85 |
| 2002 | 190.72 | 436.59 | 60.29 |