| 年度 | 实际值 |
|---|---|
| 1995 | 6677 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 5827 |
| 2000 | 2688 |
| 2001 | 5526 |
| 2002 | 5653 |
| 2003 | 6783 |
| 2004 | 7399 |
| 2005 | 5166 |
| 2006 | 6983 |
| 2007 | 8322 |
| 2008 | 10723 |
| 2009 | 13649.8598349358 |
| 2010 | 18539 |
| 2011 | 19890 |
| 2012 | 22190.3 |
| 2013 | 25257 |
| 2014 | 30003 |
| 2015 | 27179.2960344487 |
| 2016 | 29227 |
| 2017 | 32821 |