年度 | 实际值 |
---|---|
2000 | 4.3 |
2001 | 8.1 |
2002 | 9 |
2003 | 10.6 |
2004 | 10.8 |
2005 | 7 |
2006 | 9.8 |
2007 | 12.7118197764625 |
2008 | 10.1000439008198 |
2009 | 10.4 |
2010 | 15.1 |
2011 | 12.140906583993 |
2012 | 10.7 |
2013 | 12.8 |
2014 | 11.3 |
2015 | 10.0875787513453 |
2016 | 8.6 |
2017 | 8.9 |