年度 | 实际值 |
---|---|
1992 | 3.6 |
1993 | 4.3 |
1994 | |
1995 | 3.82 |
1996 | 3.74 |
1997 | 3.01 |
1998 | 5.37 |
1999 | 2.3 |
2000 | 3.55 |
2001 | 3.35 |
2002 | .63 |
2003 | 1.03 |
2004 | 1.96 |
2005 | 2.55 |
2006 | 2.88 |
2007 | 1.32 |
2008 | 4.64 |
2009 | |
2010 | 3.01 |
2011 | 4.6 |
2012 | 3.2 |
2013 | 3.7 |
2014 | 6.1 |
2015 | 8.3 |
2016 | 7.34 |
2017 | 3.39 |
2018 | 3.64 |