| 年度 | 实际值 |
|---|---|
| 1993 | 726 |
| 1994 | 2808 |
| 1995 | 1122 |
| 1996 | 1259 |
| 1997 | 1281 |
| 1998 | 1030 |
| 1999 | 931 |
| 2000 | 914 |
| 2001 | 920 |
| 2002 | 880 |
| 2003 | 959 |
| 2004 | 903 |
| 2005 | 1356 |
| 2006 | 1227 |
| 2007 | 1398 |
| 2008 | 1301 |
| 2009 | |
| 2010 | 1569 |
| 2011 | 2759 |
| 2012 | 2363 |
| 2013 | 3092 |
| 2014 | 5013 |
| 2015 | 5237 |
| 2016 | 5625 |
| 2017 | 6076 |
| 2018 | 6396 |