| 年份 | 越南 |
|---|---|
| 2023 | - |
| 2022 | 6.96286 |
| 2021 | 7.07151 |
| 2020 | 7.1852 |
| 2019 | 7.29668 |
| 2018 | 7.40241 |
| 2017 | 7.49385 |
| 2016 | 7.55214 |
| 2015 | 7.57473 |
| 2014 | 7.57926 |
| 2013 | 7.58079 |
| 2012 | 7.5841 |
| 2011 | 7.59516 |
| 2010 | 7.63661 |
| 2009 | 7.71799 |
| 2008 | 7.80704 |
| 2007 | 7.90298 |
| 2006 | 8.00715 |
| 2005 | 8.08544 |
| 2004 | 8.12512 |
| 2003 | 8.16101 |
| 2002 | 8.23327 |
| 2001 | 8.37654 |
| 2000 | 8.63149 |
| 1999 | 9.02974 |
| 1998 | 9.55717 |
| 1997 | 10.1459 |
| 1996 | 10.7436 |
| 1995 | 11.2972 |
| 1994 | 11.7586 |
| 1993 | 12.1278 |
| 1992 | 12.4362 |
| 1991 | 12.7165 |
| 1990 | 12.988 |
| 1989 | 13.2579 |
| 1988 | 13.5179 |
| 1987 | 13.7488 |
| 1986 | 13.9368 |
| 1985 | 14.0687 |
| 1984 | 14.1578 |
| 1983 | 14.2208 |
| 1982 | 14.2598 |
| 1981 | 14.2926 |
| 1980 | 14.3488 |
| 1979 | 14.3734 |
| 1978 | 14.4386 |
| 1977 | 14.5821 |
| 1976 | 14.6704 |
| 1975 | 14.693 |
| 1974 | 14.6862 |
| 1973 | 14.6331 |
| 1972 | 14.5435 |
| 1971 | 14.517 |
| 1970 | 14.6211 |
| 1969 | 14.8584 |
| 1968 | 15.2019 |
| 1967 | 15.6063 |
| 1966 | 15.8258 |
| 1965 | 15.9957 |
| 1964 | 16.2862 |
| 1963 | 16.5055 |
| 1962 | 16.6891 |
| 1961 | 16.9225 |
| 1960 | 16.9845 |