| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2020 | 87.08 | 103.48 | 77.16 |
| 2019 | 94.98 | 125.54 | 69.56 |
| 2018 | 145.15 | 223.74 | 71.19 |
| 2017 | 309.9 | 450.01 | 212.24 |
| 2016 | 245.28 | 297.51 | 167.62 |
| 2015 | 184.57 | 269.97 | 101.19 |
| 2014 | 48.41 | 53.31 | 42.81 |
| 2013 | 449.79 | 1915.87 | 47.5 |
| 2012 | 183.07 | 276.59 | 96.31 |
| 2011 | 106.87 | 202.94 | 52.25 |
| 2010 | 200.25 | 359.94 | 73.41 |
| 2009 | 283.72 | 477.17 | 50.05 |
| 2008 | 125.03 | 275.57 | 37.76 |
| 2007 | 342.9 | 528.84 | 193.1 |
| 2006 | 181.8 | 362.26 | 95.64 |
| 2005 | 78.92 | 178.45 | 29.81 |
| 2004 | 49.44 | 67.03 | 37.98 |