| 年度 | 实际值 |
|---|---|
| 1992 | 3974 |
| 1993 | |
| 1994 | |
| 1995 | 5744 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 18859 |
| 2000 | 20395 |
| 2001 | 21009 |
| 2002 | 33376 |
| 2003 | 26416 |
| 2004 | 26910 |
| 2005 | 28800 |
| 2006 | 39556 |
| 2007 | 38985 |
| 2008 | 32200 |
| 2009 | 50700 |
| 2010 | 60000 |
| 2011 | 60000 |
| 2012 | 159900 |
| 2013 | 181031 |
| 2014 | 224762 |
| 2015 | 298707 |
| 2016 | 292362 |
| 2017 | 366893 |