| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2020 | 24.97 | 28.24 | 22.41 |
| 2019 | 25.37 | 32.19 | 21.56 |
| 2018 | 37.27 | 55.15 | 23.22 |
| 2017 | 61.79 | 77.19 | 49.58 |
| 2016 | 80.8 | 103.32 | 59.71 |
| 2015 | 132.8 | 307.47 | 20.49 |
| 2014 | 29.05 | 50.38 | 20.13 |
| 2013 | 0 | -22.27 | |
| 2012 | 213.47 | 220.8 | 208.4 |
| 2011 | 354.49 | 546.6 | 96.27 |
| 2010 | 69.55 | 75.6 | 61.08 |
| 2009 | 51.55 | 75.6 | 24.49 |
| 2008 | 0 | -4.73 | |
| 2007 | 792.67 | 1510.31 | 404.31 |
| 2006 | 0 | -2.81 | |
| 2005 | 68.58 | 73.92 | 58.02 |
| 2004 | 74.61 | 98.81 | 58.1 |
| 2003 | 78.14 | 97.22 | 61.65 |
| 2002 | 262.05 | 607.46 | 88.37 |