年度 | 实际值 |
---|---|
1997 | 2.5 |
1998 | 2.7 |
1999 | 2.7 |
2000 | |
2001 | 5.89 |
2002 | 5.57745341095852 |
2003 | 6.15069625818645 |
2004 | 7.15662026545808 |
2005 | 8.19 |
2006 | 9.92 |
2007 | 11.58 |
2008 | 12.67 |
2009 | 12.86 |
2010 | 13.38 |
2011 | 13.72 |
2012 | 14.71 |
2013 | 14.74 |
2014 | 15.47 |
2015 | 15.67 |