| 年度 | 实际值 |
|---|---|
| 1997 | 2490632 |
| 1998 | 2657467 |
| 1999 | 2838286 |
| 2000 | 3285723 |
| 2001 | 3696596 |
| 2002 | 4025540 |
| 2003 | 4616645 |
| 2004 | 5520273 |
| 2005 | 6401434 |
| 2006 | 7752197 |
| 2007 | 9375470 |
| 2008 | 11240372 |
| 2009 | |
| 2010 | 15374164 |
| 2011 | 21517610 |
| 2012 | 26574944 |
| 2013 | 28753487 |
| 2014 | 31364662 |
| 2015 | 34630821 |