年度 | 实际值 |
---|---|
1995 | 37.3 |
1996 | 36.5 |
1997 | 4.54 |
1998 | 37.6 |
1999 | |
2000 | |
2001 | |
2002 | 28.59 |
2003 | 28.18 |
2004 | 26.29 |
2005 | 24.46 |
2006 | 24.6 |
2007 | 23.62 |
2008 | 22.26 |
2009 | |
2010 | 16.43 |
2011 | 12.75 |
2012 | 12.37 |
2013 | 10.48 |
2014 | 11.75 |
2015 | 15.64 |
2016 | 16.54 |
2017 | 12.05 |
2018 | 13.26 |