| 年份 | 越南 |
|---|---|
| 2023 | - |
| 2022 | 7.15676 |
| 2021 | 7.23747 |
| 2020 | 7.41162 |
| 2019 | 7.6941 |
| 2018 | 8.06021 |
| 2017 | 8.45307 |
| 2016 | 8.82396 |
| 2015 | 9.12434 |
| 2014 | 9.31534 |
| 2013 | 9.40483 |
| 2012 | 9.43231 |
| 2011 | 9.44103 |
| 2010 | 9.46328 |
| 2009 | 9.5189 |
| 2008 | 9.61984 |
| 2007 | 9.74553 |
| 2006 | 9.85971 |
| 2005 | 9.94824 |
| 2004 | 10.0146 |
| 2003 | 10.0611 |
| 2002 | 10.0786 |
| 2001 | 10.0678 |
| 2000 | 10.0402 |
| 1999 | 9.97537 |
| 1998 | 9.88304 |
| 1997 | 9.77912 |
| 1996 | 9.6337 |
| 1995 | 9.44851 |
| 1994 | 9.25016 |
| 1993 | 9.03625 |
| 1992 | 8.81695 |
| 1991 | 8.65968 |
| 1990 | 8.61556 |
| 1989 | 8.68416 |
| 1988 | 8.8468 |
| 1987 | 9.08342 |
| 1986 | 9.23165 |
| 1985 | 9.35716 |
| 1984 | 9.5635 |
| 1983 | 9.72445 |
| 1982 | 9.86237 |
| 1981 | 10.0464 |
| 1980 | 10.1051 |
| 1979 | 10.0348 |
| 1978 | 9.87241 |
| 1977 | 9.59273 |
| 1976 | 9.29946 |
| 1975 | 9.05673 |
| 1974 | 8.8705 |
| 1973 | 8.57117 |
| 1972 | 8.09875 |
| 1971 | 7.64646 |
| 1970 | 7.21351 |
| 1969 | 6.66431 |
| 1968 | 6.30054 |
| 1967 | 6.19544 |
| 1966 | 6.16602 |
| 1965 | 6.18727 |
| 1964 | 6.26228 |
| 1963 | 6.38527 |
| 1962 | 6.55431 |
| 1961 | 6.75777 |
| 1960 | 7.0117 |