| 序号 | 时间 (年) |
数据 (‰) |
|---|---|---|
| 1 | 2019 | |
| 2 | 2018 | |
| 3 | 2017 | |
| 4 | 2016 | |
| 5 | 2015 | |
| 6 | 2014 | |
| 7 | 2013 | 11.10 |
| 8 | 2012 | 11.30 |
| 9 | 2011 | 11.00 |
| 10 | 2010 | 10.78 |
| 11 | 2009 | 9.29 |
| 12 | 2008 | 9.11 |
| 13 | 2007 | 10.57 |
| 14 | 2006 | 11.25 |
| 15 | 2005 | 8.40 |
| 16 | 2004 | 8.35 |
| 17 | 2003 | 7.55 |
| 18 | 2002 | 7.80 |
| 19 | 2001 | 8.12 |
| 20 | 2000 | 10.04 |
| 21 | 1999 | 9.52 |
| 22 | 1998 | 5.74 |
| 23 | 1997 | 10.14 |
| 24 | 1996 | 10.40 |
| 25 | 1995 | 10.71 |
| 26 | 1994 | 10.40 |
| 27 | 1990 | 20.84 |
| 28 | 1985 | 10.11 |
| 29 | 1980 | 15.49 |
| 30 | 1978 | 17.04 |
