| 年度 | 实际值 |
|---|---|
| 1993 | 2273 |
| 1994 | 4212 |
| 1995 | 4031 |
| 1996 | 4046 |
| 1997 | 4110 |
| 1998 | 3897 |
| 1999 | 3625 |
| 2000 | 3767 |
| 2001 | 3909 |
| 2002 | 3486 |
| 2003 | 3573 |
| 2004 | 3439 |
| 2005 | 4332 |
| 2006 | 4589 |
| 2007 | 4995 |
| 2008 | 5021 |
| 2009 | |
| 2010 | 8126 |
| 2011 | 9189 |
| 2012 | 10008 |
| 2013 | 10234 |
| 2014 | 11015 |
| 2015 | 11666 |
| 2016 | 12635 |
| 2017 | 13362 |
| 2018 | 13993 |