| 年度 | 实际值 |
|---|---|
| 1993 | 1851 |
| 1994 | 1916 |
| 1995 | 1974 |
| 1996 | 2106 |
| 1997 | 2050 |
| 1998 | 2238 |
| 1999 | 2561 |
| 2000 | 2711 |
| 2001 | 2891 |
| 2002 | 2314 |
| 2003 | 2142 |
| 2004 | 2150 |
| 2005 | 2659 |
| 2006 | 2274 |
| 2007 | 2468 |
| 2008 | 3433 |
| 2009 | |
| 2010 | 4185 |
| 2011 | 3841 |
| 2012 | 8092 |
| 2013 | 4630 |
| 2014 | 4741 |
| 2015 | 4879 |
| 2016 | 5244 |
| 2017 | 5376 |
| 2018 | 5801 |