年度 | 实际值 |
---|---|
1992 | 51.7 |
1993 | |
1994 | |
1995 | 52.9 |
1996 | |
1997 | |
1998 | |
1999 | 55.5 |
2000 | 55 |
2001 | 43 |
2002 | 43.2 |
2003 | 44 |
2004 | 44 |
2005 | 44 |
2006 | 44 |
2007 | 45 |
2008 | 46 |
2009 | 46 |
2010 | 47 |
2011 | 48 |
2012 | 49 |
2013 | 50 |
2014 | 51 |
2015 | 52 |
2016 | 52 |
2017 | 52 |