| 序号 | 时间 (年) |
数据 (‰) |
|---|---|---|
| 1 | 2024 | |
| 2 | 2023 | |
| 3 | 2022 | |
| 4 | 2021 | |
| 5 | 2020 | |
| 6 | 2019 | |
| 7 | 2018 | |
| 8 | 2017 | |
| 9 | 2016 | |
| 10 | 2015 | |
| 11 | 2014 | 6.60 |
| 12 | 2013 | 7.64 |
| 13 | 2012 | 0.40 |
| 14 | 2011 | 6.08 |
| 15 | 2010 | 6.23 |
| 16 | 2009 | 5.60 |
| 17 | 2008 | 5.07 |
| 18 | 2007 | 6.59 |
| 19 | 2006 | 6.06 |
| 20 | 2005 | 3.00 |
| 21 | 2004 | 1.82 |
| 22 | 2003 | 2.70 |
| 23 | 2002 | 1.24 |
| 24 | 2001 | 1.54 |
| 25 | 2000 | 0.94 |
| 26 | 1999 | 1.14 |
| 27 | 1998 | 0.50 |
| 28 | 1997 | 0.79 |
| 29 | 1996 | 0.76 |
| 30 | 1995 | 1.80 |
| 31 | 1990 | 7.99 |
| 32 | 1985 | 6.63 |
| 33 | 1980 | 11.99 |
| 34 | 1978 | 13.09 |
| 35 | 1975 | 12.18 |
| 36 | 1970 | 18.83 |
| 37 | 1969 | 18.38 |
| 38 | 1965 | 19.16 |
| 39 | 1962 | 24.87 |
| 40 | 1957 | 21.48 |
| 41 | 1952 | 17.10 |
