| 年度 | 实际值 |
|---|---|
| 1999 | 3357.9 |
| 2000 | 3652 |
| 2001 | 3854 |
| 2002 | 4136 |
| 2003 | 5095 |
| 2004 | 5758 |
| 2005 | 6446 |
| 2006 | 7162 |
| 2007 | 8634.44268415827 |
| 2008 | 10365.8778007739 |
| 2009 | 12229.7561148781 |
| 2010 | 18241 |
| 2011 | 24968.7912087912 |
| 2012 | 26302.0141535112 |
| 2013 | 27861 |
| 2014 | 29540 |
| 2015 | 31404.7008547009 |