| 年份 | 中国 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 11.5956 |
| 2020 | 11.6063 |
| 2019 | 11.6276 |
| 2018 | 11.7822 |
| 2017 | 11.9334 |
| 2016 | 12.0845 |
| 2015 | 12.2356 |
| 2014 | 12.3136 |
| 2013 | 12.3959 |
| 2012 | 12.4973 |
| 2011 | 12.6414 |
| 2010 | 12.7961 |
| 2009 | 12.9295 |
| 2008 | 12.9088 |
| 2007 | 12.8828 |
| 2006 | 12.8888 |
| 2005 | 12.8522 |
| 2004 | 12.8262 |
| 2003 | 12.8056 |
| 2002 | 12.7849 |
| 2001 | 12.743 |
| 2000 | 12.6797 |
| 1999 | 12.6797 |
| 1998 | 12.6797 |
| 1997 | 12.6796 |
| 1996 | 12.7116 |
| 1995 | 12.7372 |
| 1994 | 12.8565 |
| 1993 | 12.9204 |
| 1992 | 13.0908 |
| 1991 | 13.3012 |
| 1990 | 13.1867 |
| 1989 | 13.0163 |
| 1988 | 12.8778 |
| 1987 | 12.8032 |
| 1986 | 12.8352 |
| 1985 | 12.7926 |
| 1984 | 12.1428 |
| 1983 | 11.4292 |
| 1982 | 10.8327 |
| 1981 | 10.3097 |
| 1980 | 10.2442 |
| 1979 | 10.2574 |
| 1978 | 10.2713 |
| 1977 | 10.2912 |
| 1976 | 10.3111 |
| 1975 | 10.331 |
| 1974 | 10.4876 |
| 1973 | 10.4301 |
| 1972 | 10.4801 |
| 1971 | 10.5291 |
| 1970 | 10.5749 |
| 1969 | 10.626 |
| 1968 | 10.6772 |
| 1967 | 10.7283 |
| 1966 | 10.7794 |
| 1965 | 10.8274 |
| 1964 | 10.854 |
| 1963 | 10.8753 |
| 1962 | 10.8966 |
| 1961 | 10.9286 |
| 1960 | - |