年度 | 实际值 |
---|---|
1995 | 20.3 |
1996 | 8.9 |
1997 | 7.4 |
1998 | 5.2 |
1999 | 10.7 |
2000 | |
2001 | 11 |
2002 | 12 |
2003 | 13.1 |
2004 | 12.8 |
2005 | 15 |
2006 | 15.1 |
2007 | 15.1 |
2008 | 11.5 |
2009 | 14.3 |
2010 | |
2011 | 19.7 |
2012 | 15.4 |
2013 | 15.9 |
2014 | 15.4 |
2015 | 13.9 |
2016 | 11. |
2017 | 11.8 |
2018 | 11.2 |