| 序号 | 时间 (年) |
数据 (‰) |
|---|---|---|
| 1 | 2024 | |
| 2 | 2023 | |
| 3 | 2022 | |
| 4 | 2021 | |
| 5 | 2020 | |
| 6 | 2019 | |
| 7 | 2018 | |
| 8 | 2016 | |
| 9 | 2015 | |
| 10 | 2014 | |
| 11 | 2013 | 6.59 |
| 12 | 2012 | 10.34 |
| 13 | 2011 | 10.48 |
| 14 | 2010 | 6.49 |
| 15 | 2009 | 2.15 |
| 16 | 2008 | 2.58 |
| 17 | 2007 | 2.83 |
| 18 | 2006 | 2.87 |
| 19 | 2005 | 4.80 |
| 20 | 2004 | 7.05 |
| 21 | 2003 | 5.82 |
| 22 | 2002 | 4.48 |
| 23 | 2001 | 2.17 |
| 24 | 2000 | 4.64 |
| 25 | 1999 | 2.67 |
| 26 | 1998 | 3.65 |
| 27 | 1997 | 4.47 |
| 28 | 1996 | 3.99 |
| 29 | 1995 | 4.14 |
| 30 | 1994 | 4.24 |
| 31 | 1993 | 4.10 |
| 32 | 1992 | 4.05 |
| 33 | 1991 | 4.10 |
| 34 | 1990 | 6.19 |
| 35 | 1985 | 4.28 |
| 36 | 1980 | 4.88 |
| 37 | 1978 | 4.59 |
| 38 | 1975 | 5.85 |
| 39 | 1970 | 6.76 |
| 40 | 1965 | 8.03 |
| 41 | 1962 | 10.33 |
| 42 | 1957 | 6.73 |
| 43 | 1952 | 40.60 |
| 44 | 1949 | 39.37 |
