| 年度 | 实际值 |
|---|---|
| 1999 | 1945.5 |
| 2000 | 1898 |
| 2001 | 1992 |
| 2002 | 2110 |
| 2003 | 2387 |
| 2004 | 2943 |
| 2005 | 3577 |
| 2006 | 4141.65000239318 |
| 2007 | 5498.30260952507 |
| 2008 | 7561.34112833544 |
| 2009 | 8509.52781879063 |
| 2010 | 10786.8163263012 |
| 2011 | 13376 |
| 2012 | 14344.8709621723 |
| 2013 | 16237 |
| 2014 | 17207 |
| 2015 | 19018.7013416325 |
| 2016 | 20617.6446914527 |