| 年度 | 实际值 |
|---|---|
| 1992 | 3139 |
| 1993 | |
| 1994 | |
| 1995 | 7002 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 16533 |
| 2000 | 19145 |
| 2001 | 22933 |
| 2002 | 23733 |
| 2003 | 27637 |
| 2004 | 30619 |
| 2005 | 36076 |
| 2006 | 41541 |
| 2007 | 56249 |
| 2008 | 66615 |
| 2009 | 79259 |
| 2010 | 102948 |
| 2011 | 117606 |
| 2012 | 145360 |
| 2013 | 175224 |
| 2014 | 196783 |
| 2015 | 247394 |
| 2016 | 251719 |