| 年份 | 越南 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | - |
| 2020 | - |
| 2019 | - |
| 2018 | 2.28457 |
| 2017 | 2.26797 |
| 2016 | 2.44296 |
| 2015 | 2.36116 |
| 2014 | 2.28551 |
| 2013 | 2.17685 |
| 2012 | 2.15689 |
| 2011 | 1.9821 |
| 2010 | 2.30505 |
| 2009 | 2.26521 |
| 2008 | 2.15637 |
| 2007 | 2.30476 |
| 2006 | 1.93836 |
| 2005 | 1.78096 |
| 2004 | 2.01438 |
| 2003 | 2.12864 |
| 2002 | - |
| 2001 | - |
| 2000 | - |
| 1999 | - |
| 1998 | - |
| 1997 | - |
| 1996 | - |
| 1995 | - |
| 1994 | 2.64936 |
| 1993 | 2.25869 |
| 1992 | 3.37459 |
| 1991 | 5.59532 |
| 1990 | 7.91086 |
| 1989 | 7.28651 |
| 1988 | 7.10161 |
| 1987 | 3.95377 |
| 1986 | - |
| 1985 | - |
| 1984 | - |
| 1983 | - |
| 1982 | - |
| 1981 | - |
| 1980 | - |
| 1979 | - |
| 1978 | - |
| 1977 | - |
| 1976 | - |
| 1975 | - |
| 1974 | - |
| 1973 | - |
| 1972 | - |
| 1971 | - |
| 1970 | - |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |