| 年度 | 实际值 |
|---|---|
| 1986 | 3711 |
| 1987 | 4818 |
| 1988 | 6165 |
| 1989 | 4700 |
| 1990 | 8913 |
| 1991 | 9973 |
| 1992 | 12591 |
| 1993 | 23753 |
| 1994 | 45050 |
| 1995 | 76876 |
| 1996 | 90831 |
| 1997 | 95198 |
| 1998 | 95448 |
| 1999 | 116476 |
| 2000 | 155844 |
| 2001 | 209375 |
| 2002 | 283080 |
| 2003 | 325802 |
| 2004 | 347811 |
| 2005 | 395758 |
| 2006 | 580607 |
| 2007 | 786167 |
| 2008 | 764645 |
| 2009 | 1130060 |
| 2010 | 1342791 |
| 2011 | 2339918 |
| 2012 | 2278784 |