年度 | 实际值 |
---|---|
1992 | 7 |
1993 | 5.3 |
1994 | |
1995 | 5.78 |
1996 | 7.03 |
1997 | 6.11 |
1998 | 5.15 |
1999 | 4.29 |
2000 | 6.13 |
2001 | 4.3 |
2002 | 5.72 |
2003 | .56 |
2004 | 4.73 |
2005 | 4.23 |
2006 | 3.27 |
2007 | 6.07 |
2008 | 4.56 |
2009 | |
2010 | 4.87 |
2011 | 3.8 |
2012 | 6.1 |
2013 | 4.5 |
2014 | 5.4 |
2015 | .63 |
2016 | 4.76 |
2017 | -1 |
2018 | 2.32 |