年度 | 实际值 |
---|---|
1992 | 75 |
1993 | |
1994 | |
1995 | 73.6 |
1996 | |
1997 | |
1998 | |
1999 | 76.6 |
2000 | 76.7 |
2001 | 76.8 |
2002 | 77 |
2003 | 77 |
2004 | 77.4 |
2005 | 77.4 |
2006 | 77.6 |
2007 | 78 |
2008 | 78.4 |
2009 | 78.9 |
2010 | 79.1 |
2011 | 79.5 |
2012 | 79.4 |
2013 | 79.4 |
2014 | 80.5 |
2015 | 81.17 |
2016 | 80.81 |
2017 | 81 |