| 年度 | 实际值 |
|---|---|
| 1999 | 3417 |
| 2000 | 4224 |
| 2001 | 4677 |
| 2002 | 5192 |
| 2003 | 7800 |
| 2004 | 12750 |
| 2005 | 12742 |
| 2006 | 15502 |
| 2007 | 19121 |
| 2008 | 26182 |
| 2009 | 30212.1807820635 |
| 2010 | 30564.5485698335 |
| 2011 | 28049 |
| 2012 | 27868.4229595398 |
| 2013 | 28934 |
| 2014 | 35360.53 |
| 2015 | 38297.4656455113 |
| 2016 | 46710.13 |
| 2017 | 50136 |