年度 | 实际值 |
---|---|
1992 | 5.5 |
1993 | 7.5 |
1994 | |
1995 | 6.97 |
1996 | 6.92 |
1997 | 5.67 |
1998 | 6.9 |
1999 | 4.67 |
2000 | 4.91 |
2001 | 2.52 |
2002 | 3.53 |
2003 | 3.51 |
2004 | 4.16 |
2005 | 3.66 |
2006 | 3.59 |
2007 | 3.79 |
2008 | 3 |
2009 | |
2010 | 2.91 |
2011 | 4.1 |
2012 | 3.8 |
2013 | 3.3 |
2014 | 2.3 |
2015 | 4.05 |
2016 | 4.11 |
2017 | 4.18 |
2018 | 5.11 |