年度 | 实际值 |
---|---|
1992 | 16.3 |
1993 | |
1994 | |
1995 | 16.9 |
1996 | |
1997 | |
1998 | |
1999 | 18.3 |
2000 | 18.5 |
2001 | 19 |
2002 | 19.3726 |
2003 | 19.3738 |
2004 | 20.3698 |
2005 | 20.0094 |
2006 | 20.1804 |
2007 | 20.549 |
2008 | 20.304 |
2009 | 20.8153 |
2010 | 20.8275 |
2011 | 21 |
2012 | 22 |
2013 | |
2014 | 20.2 |
2015 | 19.2086 |