| 年度 | 实际值 |
|---|---|
| 1978 | 303 |
| 1979 | |
| 1980 | |
| 1981 | |
| 1982 | |
| 1983 | |
| 1984 | |
| 1985 | 2637 |
| 1986 | |
| 1987 | |
| 1988 | |
| 1989 | |
| 1990 | 7654 |
| 1991 | |
| 1992 | |
| 1993 | |
| 1994 | |
| 1995 | 23015 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 42521 |
| 2000 | 47416 |
| 2001 | 51433 |
| 2002 | 45182 |
| 2003 | 47634 |
| 2004 | 55582 |
| 2005 | 68263 |
| 2006 | 77760 |
| 2007 | 92191 |
| 2008 | 125023 |
| 2009 | 153402 |
| 2010 | 201047 |
| 2011 | 251000 |
| 2012 | 311400 |
| 2013 | 371100 |
| 2014 | 364300 |