| 年度 | 实际值 |
|---|---|
| 1986 | 549 |
| 1987 | 661 |
| 1988 | 822 |
| 1989 | 1011 |
| 1990 | 1052 |
| 1991 | 1207 |
| 1992 | 1568 |
| 1993 | 2050 |
| 1994 | 2790 |
| 1995 | 3828 |
| 1996 | 4678 |
| 1997 | 5532 |
| 1998 | 6181 |
| 1999 | 6554 |
| 2000 | 6912 |
| 2001 | 7206 |
| 2002 | 7818 |
| 2003 | 8505 |
| 2004 | 9359 |
| 2005 | 10008 |
| 2006 | 10827 |
| 2007 | 11729 |
| 2008 | 12815 |
| 2009 | 13661 |
| 2010 | 15294 |
| 2011 | 17215 |
| 2012 | 18868 |
| 2013 | 20717 |
| 2014 | 24525 |
| 2015 | 26800 |