| 序号 | 时间 (年) |
数据 (‰) |
|---|---|---|
| 1 | 2022 | |
| 2 | 2021 | |
| 3 | 2020 | |
| 4 | 2019 | |
| 5 | 2018 | |
| 6 | 2017 | |
| 7 | 2016 | 28.00 |
| 8 | 2015 | 19.64 |
| 9 | 2014 | 17.36 |
| 10 | 2013 | 15.96 |
| 11 | 2012 | 13.86 |
| 12 | 2011 | 18.23 |
| 13 | 2010 | 27.05 |
| 14 | 2009 | 15.40 |
| 15 | 2008 | 25.22 |
| 16 | 2007 | 17.14 |
| 17 | 2006 | 13.37 |
| 18 | 2005 | 13.00 |
| 19 | 2004 | 10.99 |
| 20 | 2003 | 13.65 |
| 21 | 2002 | 10.91 |
| 22 | 2001 | 10.48 |
| 23 | 2000 | 13.44 |
| 24 | 1999 | 11.22 |
| 25 | 1998 | 12.50 |
| 26 | 1997 | 14.32 |
| 27 | 1996 | 14.76 |
| 28 | 1995 | 14.97 |
| 29 | 1990 | 17.81 |
| 30 | 1988 | 12.57 |
| 31 | 1987 | 12.90 |
