| 年份 | 中国 |
|---|---|
| 2023 | - |
| 2022 | 48.969 |
| 2021 | 48.9408 |
| 2020 | 48.9102 |
| 2019 | 48.8853 |
| 2018 | 48.8657 |
| 2017 | 48.8468 |
| 2016 | 48.8323 |
| 2015 | 48.8231 |
| 2014 | 48.817 |
| 2013 | 48.8137 |
| 2012 | 48.8125 |
| 2011 | 48.8129 |
| 2010 | 48.8144 |
| 2009 | 48.8178 |
| 2008 | 48.8225 |
| 2007 | 48.8272 |
| 2006 | 48.8325 |
| 2005 | 48.8381 |
| 2004 | 48.8434 |
| 2003 | 48.8489 |
| 2002 | 48.8547 |
| 2001 | 48.8608 |
| 2000 | 48.8722 |
| 1999 | 48.8896 |
| 1998 | 48.9051 |
| 1997 | 48.9202 |
| 1996 | 48.938 |
| 1995 | 48.9559 |
| 1994 | 48.9744 |
| 1993 | 48.9923 |
| 1992 | 49.01 |
| 1991 | 49.0301 |
| 1990 | 49.0512 |
| 1989 | 49.0693 |
| 1988 | 49.0823 |
| 1987 | 49.0922 |
| 1986 | 49.0999 |
| 1985 | 49.104 |
| 1984 | 49.1048 |
| 1983 | 49.1028 |
| 1982 | 49.1002 |
| 1981 | 49.0972 |
| 1980 | 49.0926 |
| 1979 | 49.087 |
| 1978 | 49.0803 |
| 1977 | 49.0731 |
| 1976 | 49.0662 |
| 1975 | 49.0596 |
| 1974 | 49.0536 |
| 1973 | 49.05 |
| 1972 | 49.0484 |
| 1971 | 49.0474 |
| 1970 | 49.0454 |
| 1969 | 49.041 |
| 1968 | 49.0342 |
| 1967 | 49.0236 |
| 1966 | 49.0092 |
| 1965 | 48.9916 |
| 1964 | 48.9715 |
| 1963 | 48.9509 |
| 1962 | 48.9273 |
| 1961 | 48.8968 |
| 1960 | 48.8601 |