年份 | 中国 |
---|---|
2023 | - |
2022 | - |
2021 | 1.164 |
2020 | 1.281 |
2019 | 1.496 |
2018 | 1.554 |
2017 | 1.813 |
2016 | 1.772 |
2015 | 1.67 |
2014 | 1.769 |
2013 | 1.714 |
2012 | 1.798 |
2011 | 1.668 |
2010 | 1.687 |
2009 | 1.714 |
2008 | 1.701 |
2007 | 1.666 |
2006 | 1.644 |
2005 | 1.624 |
2004 | 1.605 |
2003 | 1.57 |
2002 | 1.566 |
2001 | 1.563 |
2000 | 1.628 |
1999 | 1.53 |
1998 | 1.522 |
1997 | 1.527 |
1996 | 1.554 |
1995 | 1.588 |
1994 | 1.628 |
1993 | 1.691 |
1992 | 1.776 |
1991 | 1.934 |
1990 | 2.514 |
1989 | 2.52 |
1988 | 2.539 |
1987 | 2.76 |
1986 | 2.721 |
1985 | 2.633 |
1984 | 2.607 |
1983 | 2.559 |
1982 | 2.972 |
1981 | 2.792 |
1980 | 2.739 |
1979 | 2.745 |
1978 | 2.716 |
1977 | 2.844 |
1976 | 3.235 |
1975 | 3.571 |
1974 | 4.17 |
1973 | 4.726 |
1972 | 5.112 |
1971 | 5.523 |
1970 | 6.085 |
1969 | 6.175 |
1968 | 6.508 |
1967 | 5.806 |
1966 | 6.307 |
1965 | 6.605 |
1964 | 6.672 |
1963 | 7.513 |
1962 | 6.085 |
1961 | 3.863 |
1960 | 4.451 |