| 年度 | 实际值 |
|---|---|
| 1997 | 3346833 |
| 1998 | 3328568 |
| 1999 | 3572460 |
| 2000 | 3918456 |
| 2001 | 4158716 |
| 2002 | 4507570 |
| 2003 | 4952301 |
| 2004 | 5288411 |
| 2005 | 6006902 |
| 2006 | 6897108 |
| 2007 | 8204764 |
| 2008 | 9120421 |
| 2009 | |
| 2010 | 11224574 |
| 2011 | 12876949 |
| 2012 | 14664712 |
| 2013 | 16614827 |
| 2014 | 17368193 |
| 2015 | 18760175 |