年度 | 实际值 |
---|---|
1998 | 23.3 |
1999 | 26.9 |
2000 | 29.7 |
2001 | 35.99 |
2002 | 35.95 |
2003 | 34.54 |
2004 | 33.61 |
2005 | 35.09 |
2006 | 36.44 |
2007 | 35.71 |
2008 | 34.68 |
2009 | |
2010 | 31.28 |
2011 | 29.64 |
2012 | 29.19 |
2013 | 29.66 |
2014 | 30.56 |
2015 | 32.03 |
2016 | 32.58 |
2017 | |
2018 | 40.11 |