| 年度 | 实际值 |
|---|---|
| 1993 | 1604 |
| 1994 | 1639 |
| 1995 | 1797 |
| 1996 | 1849 |
| 1997 | 1428 |
| 1998 | 1485 |
| 1999 | 1545 |
| 2000 | 1926 |
| 2001 | 1963 |
| 2002 | 1774 |
| 2003 | 2008 |
| 2004 | 2044 |
| 2005 | 2298 |
| 2006 | 2284 |
| 2007 | 2457 |
| 2008 | 2518 |
| 2009 | 2735 |
| 2010 | 2814 |
| 2011 | 2959 |
| 2012 | 3061 |
| 2013 | 3206 |
| 2014 | 3332 |
| 2015 | 3622 |
| 2016 | 3754 |
| 2017 | 4033 |
| 2018 | 4409 |