| 年度 | 实际值 |
|---|---|
| 1978 | 4269 |
| 1979 | |
| 1980 | 6622 |
| 1981 | |
| 1982 | |
| 1983 | |
| 1984 | |
| 1985 | 20077 |
| 1986 | |
| 1987 | |
| 1988 | |
| 1989 | |
| 1990 | 16130 |
| 1991 | |
| 1992 | |
| 1993 | |
| 1994 | |
| 1995 | 72536 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 136246 |
| 2000 | 140147 |
| 2001 | 170335 |
| 2002 | 76591 |
| 2003 | 142008 |
| 2004 | 127498 |
| 2005 | 103298 |
| 2006 | 296503 |
| 2007 | 377468 |
| 2008 | 428616 |
| 2009 | 632294 |
| 2010 | 850616 |