年度 | 实际值 |
---|---|
1992 | 23.3 |
1993 | |
1994 | |
1995 | 23.9 |
1996 | |
1997 | |
1998 | |
1999 | 24.6 |
2000 | 24.74 |
2001 | 24.77 |
2002 | 24.92 |
2003 | 24.97 |
2004 | 25 |
2005 | 25.17 |
2006 | 25.28 |
2007 | 25.4 |
2008 | 25.53 |
2009 | 25.68 |
2010 | 27 |
2011 | 27 |
2012 | 27 |
2013 | 27 |
2014 | 28 |
2015 | 28 |
2016 | 28 |
2017 | 28 |