| 年份 | 越南 |
|---|---|
| 2023 | - |
| 2022 | 22.3901 |
| 2021 | 22.5452 |
| 2020 | 22.6931 |
| 2019 | 22.8589 |
| 2018 | 23.0177 |
| 2017 | 23.1721 |
| 2016 | 23.3102 |
| 2015 | 23.4192 |
| 2014 | 23.5121 |
| 2013 | 23.6084 |
| 2012 | 23.7488 |
| 2011 | 23.9677 |
| 2010 | 24.2881 |
| 2009 | 24.7254 |
| 2008 | 25.2732 |
| 2007 | 25.9139 |
| 2006 | 26.6283 |
| 2005 | 27.3728 |
| 2004 | 28.1156 |
| 2003 | 28.8731 |
| 2002 | 29.6581 |
| 2001 | 30.4891 |
| 2000 | 31.3737 |
| 1999 | 32.292 |
| 1998 | 33.2381 |
| 1997 | 34.1745 |
| 1996 | 35.053 |
| 1995 | 35.8397 |
| 1994 | 36.5061 |
| 1993 | 37.0668 |
| 1992 | 37.5421 |
| 1991 | 37.9551 |
| 1990 | 38.3297 |
| 1989 | 38.6751 |
| 1988 | 39.0107 |
| 1987 | 39.304 |
| 1986 | 39.5071 |
| 1985 | 39.6298 |
| 1984 | 39.6976 |
| 1983 | 39.7331 |
| 1982 | 39.7309 |
| 1981 | 39.7253 |
| 1980 | 39.7997 |
| 1979 | 39.9317 |
| 1978 | 40.1768 |
| 1977 | 40.5595 |
| 1976 | 40.8127 |
| 1975 | 41.0683 |
| 1974 | 41.4612 |
| 1973 | 41.8059 |
| 1972 | 42.1364 |
| 1971 | 42.4332 |
| 1970 | 42.6606 |
| 1969 | 42.9203 |
| 1968 | 43.1218 |
| 1967 | 43.275 |
| 1966 | 43.3154 |
| 1965 | 43.2251 |
| 1964 | 43.1696 |
| 1963 | 42.8315 |
| 1962 | 42.1739 |
| 1961 | 41.5564 |
| 1960 | 40.8702 |