| 年度 | 实际值 |
|---|---|
| 1993 | 1867 |
| 1994 | 2026 |
| 1995 | 2099 |
| 1996 | 2088 |
| 1997 | 2783 |
| 1998 | 2803 |
| 1999 | 3645 |
| 2000 | 3825 |
| 2001 | 3777 |
| 2002 | 2615 |
| 2003 | 2850 |
| 2004 | 2936 |
| 2005 | 2905 |
| 2006 | 3957 |
| 2007 | 3486 |
| 2008 | 2875 |
| 2009 | |
| 2010 | 4287 |
| 2011 | 4312 |
| 2012 | 4536 |
| 2013 | 5260 |
| 2014 | 4714 |
| 2015 | 5577 |
| 2016 | 5748 |
| 2017 | 5945 |
| 2018 | 6322 |