| 年度 | 实际值 |
|---|---|
| 1992 | 1234 |
| 1993 | 1242 |
| 1994 | 1266 |
| 1995 | 1321 |
| 1996 | 1360 |
| 1997 | |
| 1998 | 405 |
| 1999 | 409 |
| 2000 | 394 |
| 2001 | 397 |
| 2002 | 399 |
| 2003 | 402.08 |
| 2004 | 406.76 |
| 2005 | 411.34 |
| 2006 | 418.29 |
| 2007 | 427.29 |
| 2008 | 432.53 |
| 2009 | |
| 2010 | 461.73 |
| 2011 | 465.12 |
| 2012 | 453.76 |
| 2013 | 542.79 |
| 2014 | 474.72 |
| 2015 | 477.99 |