年度 | 实际值 |
---|---|
1995 | 20.2 |
1996 | 22 |
1997 | 24.29 |
1998 | 26 |
1999 | 27.3 |
2000 | 31.1 |
2001 | 31.46 |
2002 | 31.35 |
2003 | 28.05 |
2004 | 23.87 |
2005 | 30.51 |
2006 | 31.42 |
2007 | 30.31 |
2008 | 28.18 |
2009 | |
2010 | 27 |
2011 | 26.07 |
2012 | 27.73 |
2013 | 29.34 |
2014 | 31.88 |
2015 | 37.52 |
2016 | 38.99 |
2017 | |
2018 | 41.88 |