| 年度 | 实际值 |
|---|---|
| 1992 | 4608 |
| 1993 | |
| 1994 | |
| 1995 | 9957 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 13924 |
| 2000 | 17887 |
| 2001 | 21228 |
| 2002 | 24466.7 |
| 2003 | 29003 |
| 2004 | 30476 |
| 2005 | 30571 |
| 2006 | 34525 |
| 2007 | 31373 |
| 2008 | 31686 |
| 2009 | 41263 |
| 2010 | 51665 |
| 2011 | 71064 |
| 2012 | 98835 |
| 2013 | 126727 |
| 2014 | 180286 |
| 2015 | 202718 |
| 2016 | 229394 |
| 2017 | 250553 |