| 序号 | 时间 (年) |
数据 (人) |
|---|---|---|
| 1 | 2023 | |
| 2 | 2022 | |
| 3 | 2021 | |
| 4 | 2020 | |
| 5 | 2019 | |
| 6 | 2018 | |
| 7 | 2017 | 19.40 |
| 8 | 2016 | 19.73 |
| 9 | 2015 | 20.21 |
| 10 | 2014 | 20.68 |
| 11 | 2013 | 21.97 |
| 12 | 2012 | 23.65 |
| 13 | 2011 | 24.80 |
| 14 | 2010 | 29.98 |
| 15 | 2009 | 29.31 |
| 16 | 2008 | 29.37 |
| 17 | 2007 | 27.52 |
| 18 | 2006 | 27.39 |
| 19 | 2005 | 26.50 |
| 20 | 2004 | 25.98 |
| 21 | 2003 | 25.58 |
| 22 | 2002 | 25.86 |
| 23 | 2001 | 27.55 |
| 24 | 2000 | 19.96 |
| 25 | 1999 | 20.48 |
| 26 | 1998 | 20.06 |
| 27 | 1997 | 21.70 |
| 28 | 1996 | 24.80 |
| 29 | 1995 | 25.40 |
| 30 | 1990 | 27.62 |
| 31 | 1985 | 27.99 |
| 32 | 1980 | 29.86 |
| 33 | 1978 | 34.15 |
| 34 | 1975 | 32.67 |
| 35 | 1965 | 29.23 |
| 36 | 1962 | 31.32 |
| 37 | 1957 | 33.42 |
| 38 | 1952 | 35.29 |
