| 年度 | 实际值 |
|---|---|
| 1992 | 1264 |
| 1993 | |
| 1994 | |
| 1995 | 2459 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 2774 |
| 2000 | 2309 |
| 2001 | 2167 |
| 2002 | 5955 |
| 2003 | 6960 |
| 2004 | 8537 |
| 2005 | 7946 |
| 2006 | 50988 |
| 2007 | 71967 |
| 2008 | 88805 |
| 2009 | 122942 |
| 2010 | 154946 |
| 2011 | 178151 |
| 2012 | 182519 |
| 2013 | 180622 |
| 2014 | 199589 |
| 2015 | 203374 |
| 2016 | 221290 |
| 2017 | 226274 |