年度 | 实际值 |
---|---|
1995 | 22.4 |
1996 | 25.9 |
1997 | 9.59 |
1998 | 24.6 |
1999 | 24.6 |
2000 | 23.8 |
2001 | 22.33 |
2002 | 21.67 |
2003 | 18.02 |
2004 | 14.79 |
2005 | 9.77 |
2006 | 7.41 |
2007 | 4.92 |
2008 | 4.72 |
2009 | |
2010 | 4.81 |
2011 | 5.2 |
2012 | 5.93 |
2013 | 9.14 |
2014 | 8.6 |
2015 | 8.56 |
2016 | 8.69 |
2017 | 8.34 |
2018 | 8.37 |