年度 | 实际值 |
---|---|
1995 | 11.6 |
1996 | 11.3 |
1997 | 6.61 |
1998 | 9.6 |
1999 | 8.2 |
2000 | 8.3 |
2001 | 5.93 |
2002 | 5.94 |
2003 | 5.94 |
2004 | 5.8 |
2005 | 4.67 |
2006 | 4.43 |
2007 | 4.81 |
2008 | 4.26 |
2009 | |
2010 | 4.2 |
2011 | 4.34 |
2012 | 4.22 |
2013 | 4.2 |
2014 | 4.22 |
2015 | 4.73 |
2016 | 4.75 |
2017 | |
2018 | 3.64 |