| 年份 | 中国 |
|---|---|
| 2023 | - |
| 2022 | 3.00258 |
| 2021 | 8.35172 |
| 2020 | 1.99556 |
| 2019 | 5.57532 |
| 2018 | 6.2517 |
| 2017 | 6.30186 |
| 2016 | 6.23822 |
| 2015 | 6.42074 |
| 2014 | 6.75076 |
| 2013 | 7.05073 |
| 2012 | 7.13452 |
| 2011 | 8.95382 |
| 2010 | 10.1028 |
| 2009 | 8.85595 |
| 2008 | 9.09028 |
| 2007 | 13.6358 |
| 2006 | 12.0933 |
| 2005 | 10.7414 |
| 2004 | 9.46156 |
| 2003 | 9.35478 |
| 2002 | 8.40488 |
| 2001 | 7.55165 |
| 2000 | 7.6386 |
| 1999 | 6.73349 |
| 1998 | 6.81606 |
| 1997 | 8.1245 |
| 1996 | 8.77643 |
| 1995 | 9.75496 |
| 1994 | 11.7664 |
| 1993 | 12.582 |
| 1992 | 12.8332 |
| 1991 | 7.78209 |
| 1990 | 2.40656 |
| 1989 | 2.62086 |
| 1988 | 9.44617 |
| 1987 | 9.88116 |
| 1986 | 7.34143 |
| 1985 | 11.8966 |
| 1984 | 13.69 |
| 1983 | 9.18114 |
| 1982 | 7.42341 |
| 1981 | 3.7749 |
| 1980 | 6.49011 |
| 1979 | 6.16566 |
| 1978 | 9.84616 |
| 1977 | 6.114 |
| 1976 | -3.08132 |
| 1975 | 6.81644 |
| 1974 | 0.218006 |
| 1973 | 5.32729 |
| 1972 | 1.29011 |
| 1971 | 4.15918 |
| 1970 | 16.0504 |
| 1969 | 13.7793 |
| 1968 | -6.57145 |
| 1967 | -8.1615 |
| 1966 | 7.6084 |
| 1965 | 14.1979 |
| 1964 | 15.469 |
| 1963 | 7.62225 |
| 1962 | -6.3515 |
| 1961 | -26.5276 |
| 1960 | - |