| 年份 | 越南 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 1.944 |
| 2020 | 1.955 |
| 2019 | 1.948 |
| 2018 | 1.937 |
| 2017 | 1.93 |
| 2016 | 1.938 |
| 2015 | 1.951 |
| 2014 | 1.95 |
| 2013 | 1.951 |
| 2012 | 1.927 |
| 2011 | 1.902 |
| 2010 | 1.895 |
| 2009 | 1.906 |
| 2008 | 1.92 |
| 2007 | 1.913 |
| 2006 | 1.904 |
| 2005 | 1.962 |
| 2004 | 2.014 |
| 2003 | 2.026 |
| 2002 | 2.063 |
| 2001 | 2.051 |
| 2000 | 2.072 |
| 1999 | 2.095 |
| 1998 | 2.169 |
| 1997 | 2.29 |
| 1996 | 2.444 |
| 1995 | 2.664 |
| 1994 | 2.92 |
| 1993 | 3.143 |
| 1992 | 3.322 |
| 1991 | 3.476 |
| 1990 | 3.596 |
| 1989 | 3.702 |
| 1988 | 3.814 |
| 1987 | 3.938 |
| 1986 | 4.084 |
| 1985 | 4.215 |
| 1984 | 4.349 |
| 1983 | 4.486 |
| 1982 | 4.621 |
| 1981 | 4.752 |
| 1980 | 4.858 |
| 1979 | 4.986 |
| 1978 | 5.119 |
| 1977 | 5.262 |
| 1976 | 5.45 |
| 1975 | 5.642 |
| 1974 | 5.82 |
| 1973 | 6.108 |
| 1972 | 6.1 |
| 1971 | 6.069 |
| 1970 | 6.019 |
| 1969 | 6.013 |
| 1968 | 6.029 |
| 1967 | 5.883 |
| 1966 | 5.968 |
| 1965 | 6.156 |
| 1964 | 6.285 |
| 1963 | 6.385 |
| 1962 | 6.274 |
| 1961 | 5.476 |
| 1960 | 6.28 |