| 年份 | 中国 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | - |
| 2020 | - |
| 2019 | - |
| 2018 | 0.0075 |
| 2017 | 0.01378 |
| 2016 | 0.01355 |
| 2015 | 0.01997 |
| 2014 | 0.08044 |
| 2013 | 0.15093 |
| 2012 | 0.17111 |
| 2011 | 0.2582 |
| 2010 | 0.2768 |
| 2009 | 0.27986 |
| 2008 | 0.28671 |
| 2007 | 0.24671 |
| 2006 | 0.26887 |
| 2005 | - |
| 2004 | - |
| 2003 | - |
| 2002 | - |
| 2001 | - |
| 2000 | - |
| 1999 | - |
| 1998 | - |
| 1997 | 1.6397 |
| 1996 | 2.18098 |
| 1995 | 2.83005 |
| 1994 | 3.73956 |
| 1993 | 4.57985 |
| 1992 | 5.10434 |
| 1991 | 6.14473 |
| 1990 | 6.51575 |
| 1989 | 7.48817 |
| 1988 | - |
| 1987 | - |
| 1986 | - |
| 1985 | - |
| 1984 | - |
| 1983 | - |
| 1982 | - |
| 1981 | - |
| 1980 | - |
| 1979 | - |
| 1978 | - |
| 1977 | - |
| 1976 | - |
| 1975 | - |
| 1974 | - |
| 1973 | - |
| 1972 | - |
| 1971 | - |
| 1970 | - |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |