| 年度 | 实际值 |
|---|---|
| 1982 | 299 |
| 1983 | 347 |
| 1984 | 381 |
| 1985 | 534 |
| 1986 | 603 |
| 1987 | 732 |
| 1988 | 951 |
| 1989 | 1071 |
| 1990 | 1157 |
| 1991 | 1363 |
| 1992 | 1542 |
| 1993 | 1733 |
| 1994 | 2414 |
| 1995 | 3792 |
| 1996 | 4716 |
| 1997 | 5029 |
| 1998 | 5071 |
| 1999 | 5069 |
| 2000 | 5438 |
| 2001 | 5781 |
| 2002 | 6326 |
| 2003 | 6795 |
| 2004 | 7547 |
| 2005 | 8388 |
| 2006 | 9322 |
| 2007 | 10437 |
| 2008 | 11489 |
| 2009 | 12269 |
| 2010 | 13798 |
| 2011 | 15730 |
| 2012 | 17454 |
| 2013 | 19094 |
| 2014 | 22668 |
| 2015 | 24891 |