年度 | 实际值 |
---|---|
1995 | 4.5 |
1996 | 4.5 |
1997 | 3.93 |
1998 | 3.8 |
1999 | 3.6 |
2000 | 3.4 |
2001 | 3.37 |
2002 | 10.43 |
2003 | 8.61 |
2004 | 7.26 |
2005 | 6.09 |
2006 | 5.77 |
2007 | 5.67 |
2008 | 4.79 |
2009 | |
2010 | 4.8 |
2011 | 4.06 |
2012 | 4.69 |
2013 | 6.21 |
2014 | 5.1 |
2015 | 5.36 |
2016 | 5.42 |
2017 | 4.27 |
2018 | 4.1 |