| 年份 | 越南 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 39.4348 |
| 2020 | 39.4348 |
| 2019 | 39.5241 |
| 2018 | 38.7345 |
| 2017 | 38.828 |
| 2016 | 38.8408 |
| 2015 | 38.7634 |
| 2014 | 34.6991 |
| 2013 | 34.6727 |
| 2012 | 34.4331 |
| 2011 | 34.3733 |
| 2010 | 34.3451 |
| 2009 | 32.9068 |
| 2008 | 32.74 |
| 2007 | 32.1943 |
| 2006 | 32.2192 |
| 2005 | 32.1385 |
| 2004 | 31.5916 |
| 2003 | 30.7576 |
| 2002 | 30.446 |
| 2001 | 30.4831 |
| 2000 | 28.2261 |
| 1999 | 25.8472 |
| 1998 | 24.7473 |
| 1997 | 24.0991 |
| 1996 | 23.6013 |
| 1995 | 21.7487 |
| 1994 | 21.9362 |
| 1993 | 21.7733 |
| 1992 | 21.5828 |
| 1991 | 20.741 |
| 1990 | 20.6642 |
| 1989 | 20.6304 |
| 1988 | 20.6151 |
| 1987 | 20.6151 |
| 1986 | 20.6612 |
| 1985 | 20.738 |
| 1984 | 21.2295 |
| 1983 | 21.205 |
| 1982 | 21.1497 |
| 1981 | 21.1251 |
| 1980 | 21.0698 |
| 1979 | 21.0452 |
| 1978 | 21.0022 |
| 1977 | 20.9284 |
| 1976 | 20.6519 |
| 1975 | 20.0068 |
| 1974 | 19.9914 |
| 1973 | 19.9146 |
| 1972 | 19.8071 |
| 1971 | 19.7303 |
| 1970 | 19.7149 |
| 1969 | 19.6074 |
| 1968 | 19.5613 |
| 1967 | 19.4845 |
| 1966 | 19.4077 |
| 1965 | 19.3923 |
| 1964 | 19.3769 |
| 1963 | 19.3616 |
| 1962 | 19.3462 |
| 1961 | 19.3309 |
| 1960 | - |