| 年度 | 实际值 |
|---|---|
| 1993 | 1061 |
| 1994 | 1124 |
| 1995 | 1192 |
| 1996 | 963 |
| 1997 | 1045 |
| 1998 | 921 |
| 1999 | 982 |
| 2000 | 984 |
| 2001 | 1170 |
| 2002 | 1538 |
| 2003 | 1478 |
| 2004 | 1831 |
| 2005 | 1858 |
| 2006 | 1867 |
| 2007 | 1917 |
| 2008 | 1919 |
| 2009 | 2048 |
| 2010 | 2135 |
| 2011 | 2157 |
| 2012 | 2315 |
| 2013 | 6337 |
| 2014 | 6643 |
| 2015 | 6848 |
| 2016 | 7719 |
| 2017 | 8286 |
| 2018 | 8523 |