| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2020 | 63.36 | 77.58 | 48.9 |
| 2019 | 44.91 | 57.11 | 29.16 |
| 2018 | 22.2 | 38.88 | 12.6 |
| 2017 | 70.9 | 155.84 | 17.02 |
| 2016 | 464.91 | 1520.48 | 129.37 |
| 2015 | 274.13 | 607.05 | 46.6 |
| 2014 | 30.86 | 53.6 | 20.91 |
| 2013 | 27.31 | 46.27 | 21.13 |
| 2012 | 31.97 | 39.82 | 25.12 |
| 2011 | 49.18 | 64.39 | 29.96 |
| 2010 | 62.09 | 139.68 | 33.77 |
| 2009 | 85.41 | 176.86 | 55.14 |
| 2008 | 80.48 | 171.13 | 39.76 |
| 2007 | 119.95 | 178.52 | 66.42 |
| 2006 | 48.67 | 72.98 | 30.09 |
| 2005 | 38.18 | 53.55 | 25.78 |
| 2004 | 53.83 | 74.04 | 34.69 |
| 2003 | 63.81 | 100.3 | 37.17 |
| 2002 | 100.5 | 126.15 | 80.21 |
| 2001 | 111.01 | 165.42 | 75.04 |
| 2000 | 93 | 112.14 | 79.18 |
| 1999 | 72.45 | 119.97 | 60.11 |