| 年度 | 实际值 |
|---|---|
| 1992 | 1954 |
| 1993 | |
| 1994 | |
| 1995 | 6948 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 20094 |
| 2000 | 9291 |
| 2001 | 11667 |
| 2002 | 19756 |
| 2003 | 17384 |
| 2004 | 23535 |
| 2005 | 29812 |
| 2006 | 18924 |
| 2007 | 22133 |
| 2008 | 34933 |
| 2009 | 44808 |
| 2010 | 49997 |
| 2011 | 80108 |
| 2012 | 107958 |
| 2013 | 136376 |
| 2014 | 150796 |
| 2015 | 224137 |
| 2016 | 269420 |
| 2017 | 259748 |