| 序号 | 时间 (年) |
数据 (-) |
|---|---|---|
| 1 | 2023 | |
| 2 | 2022 | |
| 3 | 2021 | |
| 4 | 2020 | |
| 5 | 2019 | |
| 6 | 2018 | |
| 7 | 2017 | 18.71 |
| 8 | 2016 | 18.99 |
| 9 | 2015 | 19.00 |
| 10 | 2014 | 19.37 |
| 11 | 2013 | 19.74 |
| 12 | 2012 | 20.59 |
| 13 | 2011 | 21.34 |
| 14 | 2010 | 23.11 |
| 15 | 2009 | 21.29 |
| 16 | 2008 | 21.39 |
| 17 | 2007 | 21.57 |
| 18 | 2006 | 21.10 |
| 19 | 2005 | 21.71 |
| 20 | 2004 | 18.69 |
| 21 | 2003 | 21.28 |
| 22 | 2002 | 21.43 |
| 23 | 2001 | 25.36 |
| 24 | 2000 | 19.30 |
| 25 | 1999 | 18.61 |
| 26 | 1998 | 19.57 |
| 27 | 1997 | 21.63 |
| 28 | 1996 | 26.54 |
| 29 | 1995 | 39.64 |
| 30 | 1990 | 13.25 |
| 31 | 1985 | 29.72 |
| 32 | 1980 | 35.51 |
| 33 | 1978 | 19.72 |
| 34 | 1975 | 31.07 |
| 35 | 1970 | 29.28 |
| 36 | 1965 | 30.04 |
| 37 | 1962 | 31.40 |
| 38 | 1957 | 35.74 |
| 39 | 1952 | 47.57 |
