年度 | 实际值 |
---|---|
1992 | 19 |
1993 | |
1994 | |
1995 | 19.4 |
1996 | |
1997 | |
1998 | |
1999 | 19.6 |
2000 | 19.8 |
2001 | 20 |
2002 | 19.7 |
2003 | 20 |
2004 | 21 |
2005 | 20.7 |
2006 | 20.9 |
2007 | 21.1302 |
2008 | 21.38 |
2009 | 21.6 |
2010 | 21.9872 |
2011 | 21.92 |
2012 | 21.6857 |
2013 | 21.9 |
2014 | 22.13 |
2015 | 22.26 |
2016 | 22.42 |
2017 | 22 |