| 年度 | 实际值 |
|---|---|
| 1990 | 2125 |
| 1991 | 2249 |
| 1992 | 2584 |
| 1993 | 3710 |
| 1994 | 5395 |
| 1995 | 6513 |
| 1996 | 7345 |
| 1997 | 7985 |
| 1998 | 8571 |
| 1999 | 8613 |
| 2000 | 9985 |
| 2001 | 11759 |
| 2002 | 13065 |
| 2003 | 13371 |
| 2004 | 14347 |
| 2005 | 15311 |
| 2006 | 16970 |
| 2007 | 18752 |
| 2008 | 23024 |
| 2009 | 26922 |
| 2010 | 29072 |
| 2011 | 36592 |
| 2012 | 45447 |
| 2013 | 58494 |
| 2014 | 62119 |
| 2015 | 68004 |