| 年度 | 实际值 |
|---|---|
| 1992 | 2697 |
| 1993 | |
| 1994 | |
| 1995 | 3893 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 7255 |
| 2000 | 8491 |
| 2001 | 10629 |
| 2002 | 12188 |
| 2003 | 14040 |
| 2004 | 16852 |
| 2005 | 20900 |
| 2006 | 31096 |
| 2007 | 46618 |
| 2008 | 54632 |
| 2009 | 64588 |
| 2010 | 81060 |
| 2011 | 105399 |
| 2012 | 132909 |
| 2013 | 143711 |
| 2014 | 136578 |
| 2015 | 150236 |
| 2016 | 164680 |