| 年度 | 实际值 |
|---|---|
| 1993 | 4441 |
| 1994 | 4610 |
| 1995 | 4756 |
| 1996 | 5130 |
| 1997 | 5421 |
| 1998 | 4072 |
| 1999 | 4202 |
| 2000 | 4076 |
| 2001 | 4138 |
| 2002 | 4054 |
| 2003 | 5346 |
| 2004 | 5236 |
| 2005 | 5248 |
| 2006 | 5455 |
| 2007 | 5481 |
| 2008 | 5465 |
| 2009 | 5745 |
| 2010 | 6274 |
| 2011 | 6409 |
| 2012 | 7333 |
| 2013 | 7647 |
| 2014 | 8065 |
| 2015 | 8701 |
| 2016 | 10979 |
| 2017 | 11500 |
| 2018 | 12102 |