年度 | 实际值 |
---|---|
1992 | 6.9 |
1993 | |
1994 | |
1995 | 7.2 |
1996 | |
1997 | |
1998 | |
1999 | 7.3 |
2000 | 7.3 |
2001 | 7.2635 |
2002 | 7.278 |
2003 | 7.2752 |
2004 | 7.2449 |
2005 | 7.2411 |
2006 | 7.2296 |
2007 | 7.2345 |
2008 | 7.2659 |
2009 | 7.3046 |
2010 | 7 |
2011 | 7 |
2012 | 7 |
2013 | 8 |
2014 | 8 |
2015 | 8 |
2016 | 8 |
2017 | 8 |