| 序号 | 时间 (年) |
数据 (‰) |
|---|---|---|
| 1 | 2019 | |
| 2 | 2018 | |
| 3 | 2017 | |
| 4 | 2016 | |
| 5 | 2015 | |
| 6 | 2014 | |
| 7 | 2013 | 25.60 |
| 8 | 2012 | 8.70 |
| 9 | 2011 | 10.50 |
| 10 | 2010 | 26.14 |
| 11 | 2009 | 15.27 |
| 12 | 2008 | 20.44 |
| 13 | 2007 | 10.42 |
| 14 | 2006 | 15.13 |
| 15 | 2005 | 7.50 |
| 16 | 2004 | 10.59 |
| 17 | 2003 | 5.63 |
| 18 | 2002 | 10.91 |
| 19 | 2001 | 12.14 |
| 20 | 2000 | 16.37 |
| 21 | 1999 | 9.74 |
| 22 | 1998 | 4.72 |
| 23 | 1997 | 11.30 |
| 24 | 1996 | 11.33 |
| 25 | 1995 | 7.31 |
| 26 | 1994 | 7.40 |
