| 年度 | 实际值 |
|---|---|
| 1985 | 1283 |
| 1986 | |
| 1987 | |
| 1988 | |
| 1989 | |
| 1990 | 2043 |
| 1991 | |
| 1992 | 4356 |
| 1993 | |
| 1994 | |
| 1995 | 4811 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 7485 |
| 2000 | 7431 |
| 2001 | 9734 |
| 2002 | 9747 |
| 2003 | 10941 |
| 2004 | 15146 |
| 2005 | 17231 |
| 2006 | 22395 |
| 2007 | 26102 |
| 2008 | 38300 |
| 2009 | 38194 |
| 2010 | 56741 |
| 2011 | 59000 |
| 2012 | 67900 |
| 2013 | 71200 |
| 2014 | 76900 |