年度 | 实际值 |
---|---|
1995 | 18.4 |
1996 | 17.8 |
1997 | 28.27 |
1998 | 31.2 |
1999 | 26.5 |
2000 | 22 |
2001 | 19.7 |
2002 | 19.23 |
2003 | 14.01 |
2004 | 12.26 |
2005 | 7.95 |
2006 | 7.73 |
2007 | 6.77 |
2008 | 7.31 |
2009 | |
2010 | 8.04 |
2011 | 7.79 |
2012 | 7.64 |
2013 | 7.93 |
2014 | 8.2 |
2015 | 9.25 |
2016 | 10.86 |
2017 | |
2018 | 8.86 |