| 序号 | 时间 (年) |
数据 (‰) |
|---|---|---|
| 1 | 2025 | |
| 2 | 2023 | |
| 3 | 2022 | |
| 4 | 2021 | |
| 5 | 2020 | |
| 6 | 2019 | |
| 7 | 2018 | 6.03 |
| 8 | 2017 | 6.68 |
| 9 | 2016 | 6.56 |
| 10 | 2015 | 6.41 |
| 11 | 2014 | 6.43 |
| 12 | 2013 | 6.43 |
| 13 | 2012 | 6.45 |
| 14 | 2011 | 6.09 |
| 15 | 2010 | 6.36 |
| 16 | 2009 | 6.29 |
| 17 | 2008 | 5.96 |
| 18 | 2007 | 8.24 |
| 19 | 2006 | 5.58 |
| 20 | 2005 | 6.50 |
| 21 | 2004 | 7.66 |
| 22 | 2003 | 7.66 |
| 23 | 2002 | 9.93 |
| 24 | 2001 | 9.25 |
| 25 | 2000 | 6.56 |
| 26 | 1999 | 6.40 |
| 27 | 1998 | 6.27 |
| 28 | 1997 | 5.86 |
| 29 | 1996 | 6.06 |
| 30 | 1995 | 6.45 |
| 31 | 1994 | 5.96 |
| 32 | 1993 | 5.98 |
| 33 | 1992 | 6.03 |
| 34 | 1991 | 7.07 |
| 35 | 1990 | 6.83 |
| 36 | 1985 | 6.95 |
| 37 | 1980 | 8.19 |
| 38 | 1975 | 9.91 |
| 39 | 1970 | 10.02 |
| 40 | 1965 | 12.82 |
| 41 | 1960 | 51.27 |
| 42 | 1957 | 7.40 |
| 43 | 1952 | 15.71 |
| 44 | 1949 | 19.46 |
