| 年度 | 实际值 |
|---|---|
| 1993 | 3260 |
| 1994 | 3196 |
| 1995 | 3346 |
| 1996 | 4063 |
| 1997 | 4074 |
| 1998 | 3746 |
| 1999 | 3964 |
| 2000 | 3976 |
| 2001 | 9412 |
| 2002 | 2345 |
| 2003 | 2310 |
| 2004 | 3506 |
| 2005 | 3577 |
| 2006 | 2138 |
| 2007 | 3646 |
| 2008 | 3712 |
| 2009 | |
| 2010 | 5817 |
| 2011 | 7976 |
| 2012 | 8228 |
| 2013 | 8112 |
| 2014 | 8387 |
| 2015 | 9380 |
| 2016 | 9746 |
| 2017 | 10172 |
| 2018 | 10373 |