| 序号 | 时间 (年) |
数据 (‰) |
|---|---|---|
| 1 | 2024 | |
| 2 | 2023 | |
| 3 | 2022 | |
| 4 | 2021 | |
| 5 | 2020 | |
| 6 | 2019 | |
| 7 | 2018 | 18.97 |
| 8 | 2017 | 19.44 |
| 9 | 2016 | 19.93 |
| 10 | 2015 | 20.31 |
| 11 | 2014 | 20.73 |
| 12 | 2013 | 21.15 |
| 13 | 2012 | 21.50 |
| 14 | 2011 | 21.86 |
| 15 | 2010 | 22.20 |
| 16 | 2009 | 22.50 |
| 17 | 2008 | 22.89 |
| 18 | 2007 | 23.31 |
| 19 | 2006 | 23.67 |
| 20 | 2005 | 24.05 |
| 21 | 2004 | 24.48 |
| 22 | 2003 | 24.95 |
| 23 | 2002 | 25.50 |
| 24 | 2001 | 26.09 |
| 25 | 2000 | 26.67 |
| 26 | 1999 | 27.36 |
| 27 | 1998 | 28.08 |
| 28 | 1997 | 28.58 |
| 29 | 1996 | 29.19 |
| 30 | 1995 | 29.79 |
| 31 | 1994 | 30.43 |
| 32 | 1993 | 31.03 |
| 33 | 1992 | 31.71 |
| 34 | 1991 | 32.53 |
| 35 | 1990 | 33.35 |
