| 年度 | 实际值 |
|---|---|
| 1978 | 2604 |
| 1979 | |
| 1980 | 7262 |
| 1981 | |
| 1982 | |
| 1983 | |
| 1984 | |
| 1985 | 17584 |
| 1986 | |
| 1987 | |
| 1988 | |
| 1989 | |
| 1990 | 24321 |
| 1991 | |
| 1992 | |
| 1993 | |
| 1994 | |
| 1995 | 172540 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 251092 |
| 2000 | 196321 |
| 2001 | 180857 |
| 2002 | 155388 |
| 2003 | 84623 |
| 2004 | 119321 |
| 2005 | 475027 |
| 2006 | 213124 |
| 2007 | 390321 |
| 2008 | 1058423 |
| 2009 | 808984 |
| 2010 | 410250 |