| 年度 | 实际值 |
|---|---|
| 1999 | 3733.9 |
| 2000 | 3566 |
| 2001 | 3633 |
| 2002 | 3553 |
| 2003 | 4977 |
| 2004 | 6208 |
| 2005 | 7501 |
| 2006 | 8952 |
| 2007 | 11523.1286317708 |
| 2008 | 14432.8553888415 |
| 2009 | 16310.2264254501 |
| 2010 | 22207 |
| 2011 | 19252.9036341579 |
| 2012 | 19255.736332723 |
| 2013 | 20796 |
| 2014 | 23092 |
| 2015 | 24357.3429084381 |