| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2019 | 123.32 | 211.68 | 52.94 |
| 2018 | 42.07 | 62.42 | 28.22 |
| 2017 | 37.50 | 44.42 | 29.07 |
| 2016 | 46.36 | 65.56 | 40.39 |
| 2015 | 104.52 | 187.38 | 58.32 |
| 2014 | 73.54 | 101.96 | 51.83 |
| 2013 | 946.86 | 3930.7 | 79.59 |
| 2012 | 846.52 | 3737.33 | 62.82 |
| 2011 | 60.13 | 76.83 | 38.41 |
| 2010 | 54.61 | 111.12 | 26.26 |
| 2009 | 95.44 | 140.9 | 54.48 |
| 2008 | 74.98 | 158.45 | 33.08 |
| 2007 | 141.86 | 234.66 | 72.24 |
| 2006 | 73.06 | 86.32 | 57.37 |
| 2005 | 87.40 | 95.75 | 76.86 |
| 2004 | 120.95 | 177.24 | 91.98 |
| 2003 | 181.39 | 245.31 | 116.35 |
| 2002 | 103.13 | 158.5 | 61.64 |
| 2001 | 57.34 | 71.81 | 46.43 |
| 2000 | 41.06 | 57.06 | 25.29 |
| 1999 | 32.26 | 52.34 | 25.88 |