| 年度 | 实际值 |
|---|---|
| 1992 | 158.6 |
| 1993 | 160.24 |
| 1994 | 166.29 |
| 1995 | 168.46 |
| 1996 | 310.26 |
| 1997 | 311.43 |
| 1998 | 315.72 |
| 1999 | 321.5 |
| 2000 | 331.57 |
| 2001 | 335.81 |
| 2002 | 340.44 |
| 2003 | 344.86 |
| 2004 | 347.81 |
| 2005 | 350.66 |
| 2006 | 354.52 |
| 2007 | 359.82 |
| 2008 | 363.93 |
| 2009 | |
| 2010 | 337.16 |
| 2011 | 376.1 |
| 2012 | 374.5 |
| 2013 | 379.1 |
| 2014 | |
| 2015 | 391.79 |
| 2016 | 401 |
| 2017 | 408 |
| 2018 | 418 |