| 年度 | 实际值 |
|---|---|
| 1978 | 9400 |
| 1979 | |
| 1980 | 8572 |
| 1981 | |
| 1982 | |
| 1983 | |
| 1984 | |
| 1985 | 14771 |
| 1986 | |
| 1987 | |
| 1988 | |
| 1989 | |
| 1990 | 19873 |
| 1991 | |
| 1992 | |
| 1993 | |
| 1994 | |
| 1995 | 150569 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 128690 |
| 2000 | 177415 |
| 2001 | 78031 |
| 2002 | 161798 |
| 2003 | 172791 |
| 2004 | 225526 |
| 2005 | 223440 |
| 2006 | 197381 |
| 2007 | 247104 |
| 2008 | 287674 |
| 2009 | 373539 |
| 2010 | 606339 |