| 年度 | 实际值 |
|---|---|
| 1992 | 6154 |
| 1993 | |
| 1994 | |
| 1995 | 9037 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 17231 |
| 2000 | 17856 |
| 2001 | 20210 |
| 2002 | 15567 |
| 2003 | 18708 |
| 2004 | 17258 |
| 2005 | 17833 |
| 2006 | 21623 |
| 2007 | 25377 |
| 2008 | 28025 |
| 2009 | 32655 |
| 2010 | 42662 |
| 2011 | 55709 |
| 2012 | 71578 |
| 2013 | 103888 |
| 2014 | 123077 |
| 2015 | 141666 |
| 2016 | 156966 |