| 年份 | 越南 |
|---|---|
| 2023 | - |
| 2022 | 6.70426 |
| 2021 | 6.80174 |
| 2020 | 6.9868 |
| 2019 | 7.27618 |
| 2018 | 7.64813 |
| 2017 | 8.04978 |
| 2016 | 8.43639 |
| 2015 | 8.76251 |
| 2014 | 8.98977 |
| 2013 | 9.12234 |
| 2012 | 9.19174 |
| 2011 | 9.23217 |
| 2010 | 9.26829 |
| 2009 | 9.31587 |
| 2008 | 9.38721 |
| 2007 | 9.46763 |
| 2006 | 9.52732 |
| 2005 | 9.55597 |
| 2004 | 9.56232 |
| 2003 | 9.55131 |
| 2002 | 9.52151 |
| 2001 | 9.48326 |
| 2000 | 9.45132 |
| 1999 | 9.40099 |
| 1998 | 9.3408 |
| 1997 | 9.2821 |
| 1996 | 9.18912 |
| 1995 | 9.06392 |
| 1994 | 8.92861 |
| 1993 | 8.78031 |
| 1992 | 8.62748 |
| 1991 | 8.53033 |
| 1990 | 8.53388 |
| 1989 | 8.63444 |
| 1988 | 8.80905 |
| 1987 | 9.03799 |
| 1986 | 9.17115 |
| 1985 | 9.27178 |
| 1984 | 9.43929 |
| 1983 | 9.55662 |
| 1982 | 9.6491 |
| 1981 | 9.78491 |
| 1980 | 9.80738 |
| 1979 | 9.70627 |
| 1978 | 9.54714 |
| 1977 | 9.3181 |
| 1976 | 9.07695 |
| 1975 | 8.88293 |
| 1974 | 8.72911 |
| 1973 | 8.46194 |
| 1972 | 8.03884 |
| 1971 | 7.63805 |
| 1970 | 7.2577 |
| 1969 | 6.7611 |
| 1968 | 6.41796 |
| 1967 | 6.29452 |
| 1966 | 6.24098 |
| 1965 | 6.24029 |
| 1964 | 6.29566 |
| 1963 | 6.39957 |
| 1962 | 6.55101 |
| 1961 | 6.74369 |
| 1960 | 6.9919 |