| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2020 | 186.36 | 227.03 | 143.21 |
| 2019 | 73.34 | 195.21 | 23.56 |
| 2018 | 37.08 | 60.74 | 23.4 |
| 2017 | 41.5 | 64.23 | 26.54 |
| 2016 | 32.48 | 41.69 | 22.19 |
| 2015 | 33.1 | 52.15 | 20.53 |
| 2014 | 37 | 41.39 | 32.38 |
| 2013 | 27.64 | 39.47 | 18.05 |
| 2012 | 20.07 | 24.71 | 15.19 |
| 2011 | 30.6 | 41.96 | 17.59 |
| 2010 | 44.64 | 60.71 | 30.31 |
| 2009 | 0 | -7.27 | |
| 2008 | 34.36 | 58.32 | 14.07 |
| 2007 | 47.35 | 72.86 | 33.48 |
| 2006 | 49.06 | 72.5 | 34.71 |
| 2005 | 53.03 | 105.39 | 39.4 |
| 2004 | 80.19 | 121.5 | 60.92 |
| 2003 | 55.39 | 66.39 | 35.57 |
| 2002 | 120.59 | 146.7 | 81.45 |
| 2001 | 103.5 | 133.35 | 64.37 |
| 2000 | 77 | 100.45 | 48.63 |
| 1999 | 45.24 | 59.76 | 32.59 |