| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2019 | 60.13 | 119.22 | 34.04 |
| 2018 | 42.26 | 73.03 | 29.12 |
| 2017 | 181.31 | 345.1 | 66.3 |
| 2016 | 48.90 | 117.23 | 25.39 |
| 2015 | 50.02 | 113.65 | 31.95 |
| 2014 | 74.57 | 171.43 | 28.85 |
| 2013 | 322.79 | 368.11 | 301.02 |
| 2012 | 236.66 | 980.22 | 24.05 |
| 2011 | 36.58 | 56.3 | 24.48 |
| 2010 | 71.96 | 122.45 | 36.59 |
| 2009 | 19.64 | 55.39 | 4.95 |
| 2008 | 16.09 | 37.21 | 3.91 |
| 2007 | 25.20 | 39.1 | 12.8 |
| 2006 | 7.89 | 12.84 | 6.06 |
| 2005 | 12.68 | 25.63 | 5.61 |
| 2004 | 31.39 | 54 | 19.57 |
| 2003 | 34.48 | 42.94 | 26.67 |