| 年度 | 实际值 |
|---|---|
| 1999 | 2451.4 |
| 2000 | 2436 |
| 2001 | 2639 |
| 2002 | 2866 |
| 2003 | 3691 |
| 2004 | 3999 |
| 2005 | 5204 |
| 2006 | 5906.82513642339 |
| 2007 | 6817.97531048639 |
| 2008 | 9123.78275162896 |
| 2009 | 9681.87405970228 |
| 2010 | 13259.5491957836 |
| 2011 | 17502 |
| 2012 | 17698.2640171904 |
| 2013 | 18870 |
| 2014 | 20520 |
| 2015 | 22284.0838363951 |
| 2016 | 24558.2048978587 |