| 年度 | 实际值 |
|---|---|
| 1997 | 3305796 |
| 1998 | 3308329 |
| 1999 | 3518451 |
| 2000 | 3623317 |
| 2001 | 3903024 |
| 2002 | 4314854 |
| 2003 | 4663923 |
| 2004 | 5207197 |
| 2005 | 5904958 |
| 2006 | 6752060 |
| 2007 | 8065696 |
| 2008 | 9758941 |
| 2009 | |
| 2010 | 16078823 |
| 2011 | 20794303 |
| 2012 | 21339278 |
| 2013 | 26859038 |
| 2014 | 31423068 |
| 2015 | 35269933 |