| 年份 | 越南 |
|---|---|
| 2023 | - |
| 2022 | 13.3108 |
| 2021 | 12.7408 |
| 2020 | 12.235 |
| 2019 | 11.6895 |
| 2018 | 11.2063 |
| 2017 | 10.7726 |
| 2016 | 10.4124 |
| 2015 | 10.0978 |
| 2014 | 9.74181 |
| 2013 | 9.50194 |
| 2012 | 9.41078 |
| 2011 | 9.37179 |
| 2010 | 9.36861 |
| 2009 | 9.39948 |
| 2008 | 9.4523 |
| 2007 | 9.51873 |
| 2006 | 9.59461 |
| 2005 | 9.67144 |
| 2004 | 9.74322 |
| 2003 | 9.80986 |
| 2002 | 9.86817 |
| 2001 | 9.91031 |
| 2000 | 9.9318 |
| 1999 | 9.93667 |
| 1998 | 9.92677 |
| 1997 | 9.90313 |
| 1996 | 9.88203 |
| 1995 | 9.87719 |
| 1994 | 9.88747 |
| 1993 | 9.91506 |
| 1992 | 9.96166 |
| 1991 | 10.0059 |
| 1990 | 10.0351 |
| 1989 | 10.0542 |
| 1988 | 10.064 |
| 1987 | 10.0605 |
| 1986 | 10.0475 |
| 1985 | 10.0466 |
| 1984 | 10.0604 |
| 1983 | 10.085 |
| 1982 | 10.1088 |
| 1981 | 10.1248 |
| 1980 | 10.1374 |
| 1979 | 10.1048 |
| 1978 | 10.0664 |
| 1977 | 10.0701 |
| 1976 | 10.0518 |
| 1975 | 10.0546 |
| 1974 | 10.146 |
| 1973 | 10.2855 |
| 1972 | 10.4556 |
| 1971 | 10.6002 |
| 1970 | 10.6556 |
| 1969 | 10.6603 |
| 1968 | 10.6144 |
| 1967 | 10.4972 |
| 1966 | 10.3196 |
| 1965 | 10.1436 |
| 1964 | 9.99767 |
| 1963 | 9.82575 |
| 1962 | 9.61333 |
| 1961 | 9.37154 |
| 1960 | 9.10813 |