年度 | 实际值 |
---|---|
1998 | 30.3 |
1999 | |
2000 | 39.9 |
2001 | 36.25 |
2002 | 36.14 |
2003 | 34.02 |
2004 | 34.64 |
2005 | 34.71 |
2006 | 30.43 |
2007 | 29.53 |
2008 | 28.39 |
2009 | |
2010 | 23.08 |
2011 | 22.12 |
2012 | 21.95 |
2013 | 21.52 |
2014 | 20.23 |
2015 | 19.75 |
2016 | 16.46 |
2017 | |
2018 | 15.64 |