年度 | 实际值 |
---|---|
1995 | 26.5 |
1996 | 24.5 |
1997 | 25.55 |
1998 | 26.1 |
1999 | 26.5 |
2000 | 26.1 |
2001 | 25.78 |
2002 | 25.62 |
2003 | 25.34 |
2004 | 23.46 |
2005 | 22.4 |
2006 | 22.2 |
2007 | 22.92 |
2008 | 21.76 |
2009 | |
2010 | 20.1 |
2011 | 21.32 |
2012 | 22.62 |
2013 | 23.32 |
2014 | 30.39 |
2015 | 33.19 |
2016 | 34.35 |
2017 | |
2018 | 37 |