| 序号 | 时间 (年) |
数据 (‰) |
|---|---|---|
| 1 | 2025 | |
| 2 | 2024 | |
| 3 | 2023 | |
| 4 | 2022 | |
| 5 | 2021 | |
| 6 | 2020 | |
| 7 | 2019 | 8.31 |
| 8 | 2018 | 9.00 |
| 9 | 2017 | 9.79 |
| 10 | 2016 | 5.85 |
| 11 | 2015 | 8.66 |
| 12 | 2014 | 8.15 |
| 13 | 2013 | 7.66 |
| 14 | 2012 | 7.03 |
| 15 | 2011 | 6.94 |
| 16 | 2010 | 42.83 |
| 17 | 2009 | 9.36 |
| 18 | 2008 | 14.21 |
| 19 | 2007 | 19.30 |
| 20 | 2006 | 19.86 |
| 21 | 2005 | 15.92 |
| 22 | 2004 | 23.88 |
| 23 | 2003 | 13.32 |
| 24 | 2002 | 9.40 |
| 25 | 2001 | 10.50 |
| 26 | 2000 | 13.20 |
| 27 | 1999 | 13.10 |
| 28 | 1998 | 14.30 |
| 29 | 1997 | 14.59 |
| 30 | 1996 | 15.81 |
| 31 | 1995 | 13.16 |
| 32 | 1994 | 14.72 |
| 33 | 1993 | 12.70 |
| 34 | 1992 | 12.20 |
| 35 | 1991 | 12.18 |
| 36 | 1990 | 12.98 |
| 37 | 1989 | 11.50 |
| 38 | 1988 | 11.58 |
| 39 | 1987 | 15.15 |
| 40 | 1986 | 16.64 |
