年度 | 实际值 |
---|---|
1992 | 7.2 |
1993 | 9.1 |
1994 | |
1995 | 9.82 |
1996 | 8.45 |
1997 | |
1998 | |
1999 | |
2000 | 7.46 |
2001 | 7.21 |
2002 | 6.41 |
2003 | 5.41 |
2004 | 5.09 |
2005 | 5.11 |
2006 | 5.36 |
2007 | 5.51 |
2008 | 5.54 |
2009 | 5.55 |
2010 | 4.62 |
2011 | 4.64 |
2012 | 4.61 |
2013 | 4.63 |
2014 | 4.54081212339239 |
2015 | 4.42 |
2016 | 5.21 |
2017 | 0.3 |
2018 | 5.05 |