| 年度 | 实际值 |
|---|---|
| 1993 | 6224 |
| 1994 | 6489 |
| 1995 | 6454 |
| 1996 | 6439 |
| 1997 | 6350 |
| 1998 | 5942 |
| 1999 | 6188 |
| 2000 | 6005 |
| 2001 | 5855 |
| 2002 | 4958 |
| 2003 | 5409 |
| 2004 | 5404 |
| 2005 | 5988 |
| 2006 | 6410 |
| 2007 | 6478 |
| 2008 | 7479 |
| 2009 | |
| 2010 | 8586 |
| 2011 | 8934 |
| 2012 | 10215 |
| 2013 | 11013 |
| 2014 | 11707 |
| 2015 | 12207 |
| 2016 | 13294 |
| 2017 | 14776 |
| 2018 | 15958 |