| 年份 | 越南 |
|---|---|
| 2023 | - |
| 2022 | 7.44131 |
| 2021 | 7.50155 |
| 2020 | 7.52814 |
| 2019 | 7.52878 |
| 2018 | 7.52958 |
| 2017 | 7.56731 |
| 2016 | 7.67135 |
| 2015 | 7.87349 |
| 2014 | 8.18844 |
| 2013 | 8.59441 |
| 2012 | 9.02807 |
| 2011 | 9.43499 |
| 2010 | 9.7624 |
| 2009 | 9.97717 |
| 2008 | 10.1256 |
| 2007 | 10.2499 |
| 2006 | 10.3604 |
| 2005 | 10.4857 |
| 2004 | 10.6383 |
| 2003 | 10.8119 |
| 2002 | 10.9911 |
| 2001 | 11.1531 |
| 2000 | 11.2732 |
| 1999 | 11.2827 |
| 1998 | 11.1974 |
| 1997 | 11.0927 |
| 1996 | 10.984 |
| 1995 | 10.8981 |
| 1994 | 10.8353 |
| 1993 | 10.8002 |
| 1992 | 10.7704 |
| 1991 | 10.6951 |
| 1990 | 10.5691 |
| 1989 | 10.4103 |
| 1988 | 10.2323 |
| 1987 | 10.059 |
| 1986 | 9.95332 |
| 1985 | 9.96766 |
| 1984 | 10.0999 |
| 1983 | 10.3293 |
| 1982 | 10.6353 |
| 1981 | 10.8338 |
| 1980 | 10.9962 |
| 1979 | 11.3722 |
| 1978 | 11.6553 |
| 1977 | 11.7341 |
| 1976 | 11.8574 |
| 1975 | 11.8412 |
| 1974 | 11.6631 |
| 1973 | 11.4264 |
| 1972 | 11.1298 |
| 1971 | 10.8167 |
| 1970 | 10.5512 |
| 1969 | 10.333 |
| 1968 | 9.96077 |
| 1967 | 9.38438 |
| 1966 | 8.85745 |
| 1965 | 8.37626 |
| 1964 | 7.76244 |
| 1963 | 7.36547 |
| 1962 | 7.27254 |
| 1961 | 7.25456 |
| 1960 | 7.28862 |