| 年份 | 越南 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 2.54702 |
| 2020 | 1.81088 |
| 2019 | 2.50068 |
| 2018 | 3.2601 |
| 2017 | 3.2135 |
| 2016 | 2.68358 |
| 2015 | 3.38333 |
| 2014 | 5.66095 |
| 2013 | 5.91331 |
| 2012 | 7.29868 |
| 2011 | 9.06944 |
| 2010 | 7.48128 |
| 2009 | 7.40089 |
| 2008 | 13.9197 |
| 2007 | 11.4132 |
| 2006 | 12.2305 |
| 2005 | 12.1342 |
| 2004 | 11.7643 |
| 2003 | 7.95489 |
| 2002 | 7.42549 |
| 2001 | 7.98036 |
| 2000 | 9.69223 |
| 1999 | 5.64048 |
| 1998 | 4.55859 |
| 1997 | 5.75041 |
| 1996 | 7.00279 |
| 1995 | 7.28047 |
| 1994 | 6.73817 |
| 1993 | 7.69224 |
| 1992 | 10.2594 |
| 1991 | 8.02299 |
| 1990 | 12.3278 |
| 1989 | 9.2534 |
| 1988 | 1.76271 |
| 1987 | 1.16167 |
| 1986 | 1.46542 |
| 1985 | 2.16947 |
| 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 | - |