| 年度 | 实际值 |
|---|---|
| 1982 | 1388 |
| 1983 | 1526 |
| 1984 | 1676 |
| 1985 | 2196 |
| 1986 | 2295 |
| 1987 | 2516 |
| 1988 | 2261 |
| 1989 | 4100 |
| 1990 | 4592 |
| 1991 | 4775 |
| 1992 | 6152 |
| 1993 | 12130 |
| 1994 | 16293 |
| 1995 | 18786 |
| 1996 | 20968 |
| 1997 | 28083 |
| 1998 | 29455 |
| 1999 | 32724 |
| 2000 | 40230 |
| 2001 | 44530 |
| 2002 | 56141 |
| 2003 | 76400 |
| 2004 | 84599 |
| 2005 | 76193 |
| 2006 | 144341 |
| 2007 | 199628 |
| 2008 | 222374 |
| 2009 | 228235 |
| 2010 | 281424 |
| 2011 | 341442 |
| 2012 | 393755 |
| 2013 | 443281 |
| 2014 | 477294 |
| 2015 | 591500 |