年度 | 实际值 |
---|---|
2000 | 12.2 |
2001 | 11 |
2002 | 10.3 |
2003 | 11.1 |
2004 | 11.1 |
2005 | 12.4 |
2006 | 13.1 |
2007 | 12.24950292 |
2008 | 10.5 |
2009 | 11.2999689435668 |
2010 | 17.2 |
2011 | 15.120676019327 |
2012 | 15.8189280130061 |
2013 | 13.3 |
2014 | 13.7 |
2015 | 10.2506896446422 |
2016 | 8.4 |
2017 | 11.7 |
2018 | 6.1 |