| 年度 | 实际值 |
|---|---|
| 1993 | 6686 |
| 1994 | 7913 |
| 1995 | 8070 |
| 1996 | 8397 |
| 1997 | 6135 |
| 1998 | 7455 |
| 1999 | 7679 |
| 2000 | 8202 |
| 2001 | 8298 |
| 2002 | 8185 |
| 2003 | 8233 |
| 2004 | 8144 |
| 2005 | 8480 |
| 2006 | 8495 |
| 2007 | 9734 |
| 2008 | 10050 |
| 2009 | |
| 2010 | 12118 |
| 2011 | 12264 |
| 2012 | 14552 |
| 2013 | 15497 |
| 2014 | 16009 |
| 2015 | 17612 |
| 2016 | 18444 |
| 2017 | 19233 |
| 2018 | 20909 |