| 序号 | 时间 (年) |
数据 (‰) |
|---|---|---|
| 1 | 2024 | |
| 2 | 2023 | |
| 3 | 2022 | |
| 4 | 2021 | |
| 5 | 2020 | |
| 6 | 2019 | |
| 7 | 2018 | 6.03 |
| 8 | 2017 | 6.60 |
| 9 | 2016 | 5.65 |
| 10 | 2015 | 6.21 |
| 11 | 2014 | 5.84 |
| 12 | 2013 | 5.77 |
| 13 | 2012 | 6.88 |
| 14 | 2011 | 5.50 |
| 15 | 2010 | 7.87 |
| 16 | 2009 | 5.69 |
| 17 | 2008 | 5.60 |
| 18 | 2007 | 5.56 |
| 19 | 2006 | 5.15 |
| 20 | 2005 | 5.35 |
| 21 | 2004 | 5.44 |
| 22 | 2003 | 6.79 |
| 23 | 2002 | 5.47 |
| 24 | 2000 | 7.69 |
| 25 | 1999 | 5.53 |
| 26 | 1998 | 6.12 |
| 27 | 1997 | 5.85 |
| 28 | 1995 | 5.94 |
| 29 | 1990 | 5.59 |
| 30 | 1985 | 5.60 |
| 31 | 1980 | 5.83 |
| 32 | 1978 | 5.66 |
| 33 | 1975 | 5.70 |
| 34 | 1970 | 5.28 |
| 35 | 1965 | 6.49 |
| 36 | 1962 | 8.27 |
| 37 | 1960 | 20.45 |
| 38 | 1957 | 9.60 |
| 39 | 1955 | 12.84 |
| 40 | 1952 | 14.57 |
| 41 | 1950 | 15.56 |
| 42 | 1949 | 17.36 |
