| 年度 | 实际值 |
|---|---|
| 1997 | 1636666 |
| 1998 | 1477199 |
| 1999 | 1479784 |
| 2000 | 2351727 |
| 2001 | 2752121 |
| 2002 | 3037282 |
| 2003 | 3613458 |
| 2004 | 4439128 |
| 2005 | 5382792 |
| 2006 | 6412301 |
| 2007 | 7716896 |
| 2008 | 9189369 |
| 2009 | |
| 2010 | 12335507 |
| 2011 | 15017751 |
| 2012 | 17944273 |
| 2013 | 20154937 |
| 2014 | 21336140 |
| 2015 | 22170297 |