年度 | 实际值 |
---|---|
1992 | 10.3 |
1993 | 9.9 |
1994 | |
1995 | 8.33 |
1996 | 8.09 |
1997 | 7.57 |
1998 | 6.35 |
1999 | 5.71 |
2000 | 5.11 |
2001 | 3.42 |
2002 | 3.07 |
2003 | 3.26 |
2004 | 1.92 |
2005 | 2.76 |
2006 | 3.55 |
2007 | 1.25 |
2008 | 2.37 |
2009 | |
2010 | 2.49 |
2011 | 3.1 |
2012 | .3 |
2013 | 3.8 |
2014 | 2.3 |
2015 | 5.7 |
2016 | 7.32 |
2017 | 6.68 |
2018 | 7.03 |