| 年度 | 实际值 |
|---|---|
| 1993 | 2199 |
| 1994 | 2298 |
| 1995 | 2403 |
| 1996 | 2086 |
| 1997 | 2235 |
| 1998 | 2196 |
| 1999 | 2258 |
| 2000 | 2508 |
| 2001 | 2557 |
| 2002 | 2565 |
| 2003 | 2591 |
| 2004 | 2704 |
| 2005 | 1974 |
| 2006 | 2082 |
| 2007 | 2455 |
| 2008 | 2429 |
| 2009 | |
| 2010 | 2463 |
| 2011 | 2331 |
| 2012 | 2468 |
| 2013 | 2572 |
| 2014 | 2683 |
| 2015 | 2656 |
| 2016 | 3055 |
| 2017 | 3341 |
| 2018 | 3603 |