| 年度 | 实际值 |
|---|---|
| 1992 | 239 |
| 1993 | |
| 1994 | |
| 1995 | 3348 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 5929 |
| 2000 | 6686 |
| 2001 | 7999 |
| 2002 | 6455 |
| 2003 | 7590 |
| 2004 | 9210 |
| 2005 | 8650 |
| 2006 | 4630 |
| 2007 | 6207 |
| 2008 | 12384 |
| 2009 | 36710 |
| 2010 | 73763 |
| 2011 | 108082 |
| 2012 | 171973 |
| 2013 | 223636 |
| 2014 | 226733 |
| 2015 | 270426 |
| 2016 | 330959 |
| 2017 | 340080 |