年度 | 实际值 |
---|---|
1992 | 7.8 |
1993 | 7.1 |
1994 | |
1995 | 4.72 |
1996 | 3.57 |
1997 | |
1998 | |
1999 | |
2000 | .09 |
2001 | .37 |
2002 | .39 |
2003 | .62 |
2004 | 1.77 |
2005 | 1.95 |
2006 | 4.68 |
2007 | 7.09 |
2008 | 4.1 |
2009 | |
2010 | 2.91 |
2011 | 2.7 |
2012 | 3.3 |
2013 | 9.1 |
2014 | 1.6 |
2015 | 2.38 |
2016 | 5.35 |
2017 | 3.56 |
2018 | 3.96 |