| 年度 | 实际值 |
|---|---|
| 1999 | 3410.9 |
| 2000 | 3821 |
| 2001 | 4105 |
| 2002 | 4488 |
| 2003 | 5923 |
| 2004 | 7236 |
| 2005 | 8525 |
| 2006 | 11197 |
| 2007 | 14200.8654997921 |
| 2008 | 16380.2701782268 |
| 2009 | 18687.6279881147 |
| 2010 | 28430 |
| 2011 | 24516.7477039438 |
| 2012 | 26818.2453790517 |
| 2013 | 29028 |
| 2014 | 30801 |
| 2015 | 33029.9036183889 |