| 年度 | 实际值 |
|---|---|
| 1993 | 24173 |
| 1994 | 24381 |
| 1995 | 24745 |
| 1996 | 24818 |
| 1997 | 25652 |
| 1998 | 25753 |
| 1999 | 26168 |
| 2000 | 26187 |
| 2001 | 26157 |
| 2002 | 26045 |
| 2003 | 25000 |
| 2004 | 26010 |
| 2005 | 26228 |
| 2006 | 26925 |
| 2007 | 28673 |
| 2008 | 30447 |
| 2009 | |
| 2010 | 35323 |
| 2011 | 39887 |
| 2012 | 42800 |
| 2013 | 45861 |
| 2014 | 48200 |
| 2015 | 50236 |
| 2016 | 54718 |
| 2017 | 58159 |
| 2018 | 61548 |