年度 | 实际值 |
---|---|
1993 | 2.2 |
1994 | |
1995 | 19.9 |
1996 | 18.2 |
1997 | |
1998 | |
1999 | |
2000 | |
2001 | 1.96666666666667 |
2002 | |
2003 | 9.41 |
2004 | 9.41 |
2005 | 10 |
2006 | 8.76 |
2007 | 30.68 |
2008 | 30.68 |
2009 | |
2010 | 30.61 |
2011 | 30 |
2012 | 31 |
2013 | 31.14 |
2014 | 31.02 |
2015 | 24.56 |
2016 | 28.38 |
2017 | 35.87 |
2018 | 32.5 |