| 年度 | 实际值 |
|---|---|
| 1999 | 3869.7 |
| 2000 | 3788 |
| 2001 | 4180 |
| 2002 | 4436 |
| 2003 | 3424 |
| 2004 | 3905 |
| 2005 | 4780 |
| 2006 | 6300.49656093908 |
| 2007 | 7233.02923966404 |
| 2008 | 9536.6630495687 |
| 2009 | 11157.8311963109 |
| 2010 | 15474.6421433659 |
| 2011 | 21642 |
| 2012 | 23209.7427910483 |
| 2013 | 25118 |
| 2014 | 27620 |
| 2015 | 31270.4356723447 |
| 2016 | 33464.0732789466 |