年份 | 越南 |
---|---|
2023 | - |
2022 | - |
2021 | 33.3 |
2020 | 33 |
2019 | 32.7 |
2018 | 32.4 |
2017 | 32 |
2016 | 31.6 |
2015 | 31.2 |
2014 | 30.9 |
2013 | 30.5 |
2012 | 30 |
2011 | 29.5 |
2010 | 29.1 |
2009 | 28.6 |
2008 | 28 |
2007 | 27.2 |
2006 | 26.3 |
2005 | 25.4 |
2004 | 24.4 |
2003 | 23.4 |
2002 | 22.3 |
2001 | 21.1 |
2000 | 19.8 |
1999 | 18.4 |
1998 | 16.8 |
1997 | 15.1 |
1996 | 13.3 |
1995 | 11.6 |
1994 | 10.2 |
1993 | 9.3 |
1992 | 8.8 |
1991 | 8.5 |
1990 | 8.3 |
1989 | - |
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 | - |