| 年度 | 综合得分 | 增长率(%) |
| 2001 | 0.083313 | - |
| 2002 | 0.050671 | −39.18 |
| 2003 | 0.061220 | 20.82 |
| 2004 | 0.057401 | −6.24 |
| 2005 | 0.048885 | −14.84 |
| 2006 | 0.055076 | 12.66 |
| 2007 | 0.056901 | 3.31 |
| 2008 | 0.045869 | −19.39 |
| 2009 | 0.047932 | 4.50 |
| 2010 | 0.057107 | 19.14 |
| 2011 | 0.073635 | 28.94 |
| 2012 | 0.066586 | −9.57 |
| 2013 | 0.052634 | −20.95 |
| 2014 | 0.061350 | 16.56 |
| 2015 | 0.055031 | −10.30 |
| 2016 | 0.058346 | 6.02 |
| 2017 | 0.068045 | 16.62 |