年度 | 实际值 |
---|---|
1997 | 26.24 |
1998 | 28.4 |
1999 | 29.5 |
2000 | 30.2 |
2001 | 30.98 |
2002 | 31.69 |
2003 | 32.07 |
2004 | 32.06 |
2005 | 38.61 |
2006 | 38.71 |
2007 | 36.81 |
2008 | 36.05 |
2009 | |
2010 | 33.53 |
2011 | 31.55 |
2012 | 31.83 |
2013 | 31.44 |
2014 | 32.01 |
2015 | 34.1 |
2016 | 35.19 |
2017 | |
2018 | 36.93 |