年度 | 实际值 |
---|---|
1995 | 13.9 |
1996 | 14 |
1997 | 41 |
1998 | 15.1 |
1999 | 16 |
2000 | 15.6 |
2001 | 14.37 |
2002 | 19.08 |
2003 | 23.91 |
2004 | 20.82 |
2005 | 20.67 |
2006 | 20 |
2007 | 20.08 |
2008 | 20.27 |
2009 | |
2010 | 17.71 |
2011 | 19.29 |
2012 | 19.15 |
2013 | 19.3 |
2014 | 17.97 |
2015 | 17.07 |
2016 | 15.89 |
2017 | 15.71 |
2018 | 13.51 |