年度 | 实际值 |
---|---|
1992 | 51.3 |
1993 | |
1994 | |
1995 | 52.1 |
1996 | |
1997 | |
1998 | |
1999 | 53.8 |
2000 | 54.5 |
2001 | 55.1 |
2002 | 55.6 |
2003 | 55.8 |
2004 | 55.9 |
2005 | 56.3 |
2006 | 56.9 |
2007 | 57.5 |
2008 | 57.9 |
2009 | 58.5 |
2010 | 58.6 |
2011 | 59 |
2012 | 59.5 |
2013 | 59.7 |
2014 | 59.7 |
2015 | 59.8 |
2016 | 58.405 |
2017 | 60 |