| 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 | 0.91 |
| 12 | 2013 | 0.78 |
| 13 | 2012 | 1.27 |
| 14 | 2011 | 1.07 |
| 15 | 2010 | 1.52 |
| 16 | 2009 | 2.06 |
| 17 | 2008 | 2.23 |
| 18 | 2007 | 2.49 |
| 19 | 2006 | 2.39 |
| 20 | 2005 | 2.67 |
| 21 | 2004 | 1.82 |
| 22 | 2003 | 2.03 |
| 23 | 2002 | 2.54 |
| 24 | 2001 | 2.99 |
| 25 | 2000 | 3.93 |
| 26 | 1999 | 5.06 |
| 27 | 1998 | 6.36 |
| 28 | 1997 | 6.85 |
| 29 | 1996 | 7.35 |
| 30 | 1995 | 7.90 |
| 31 | 1994 | 9.68 |
| 32 | 1993 | 10.38 |
| 33 | 1992 | 10.13 |
| 34 | 1991 | 10.19 |
| 35 | 1990 | 11.76 |
| 36 | 1985 | 10.28 |
| 37 | 1980 | 8.63 |
| 38 | 1978 | 12.16 |
| 39 | 1975 | 16.55 |
| 40 | 1970 | 28.99 |
| 41 | 1965 | 32.38 |
| 42 | 1962 | 26.84 |
| 43 | 1957 | 26.14 |
