| 年度 | 实际值 |
|---|---|
| 1993 | 2215 |
| 1994 | 2299 |
| 1995 | 2342 |
| 1996 | 2305 |
| 1997 | 2390 |
| 1998 | 1478 |
| 1999 | 1547 |
| 2000 | 1507 |
| 2001 | 1495 |
| 2002 | 1499 |
| 2003 | 1557 |
| 2004 | 2270 |
| 2005 | 2287 |
| 2006 | 2479 |
| 2007 | 2404 |
| 2008 | 2433 |
| 2009 | |
| 2010 | 2674 |
| 2011 | 2971 |
| 2012 | 3209 |
| 2013 | 3514 |
| 2014 | 5017 |
| 2015 | 5140 |
| 2016 | 6090 |
| 2017 | 6222 |
| 2018 | 6623 |