| 年份 | 老挝 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 5.38276 |
| 2020 | 2.81747 |
| 2019 | 3.10454 |
| 2018 | 3.87876 |
| 2017 | 4.97088 |
| 2016 | 4.35259 |
| 2015 | 5.52476 |
| 2014 | 8.12985 |
| 2013 | 12.5381 |
| 2012 | 12.1203 |
| 2011 | 15.2723 |
| 2010 | 14.8104 |
| 2009 | 10.5912 |
| 2008 | 13.0184 |
| 2007 | 13.2219 |
| 2006 | 13.282 |
| 2005 | 6.59796 |
| 2004 | 6.13768 |
| 2003 | 6.5789 |
| 2002 | 4.8109 |
| 2001 | 4.55667 |
| 2000 | 4.02461 |
| 1999 | 5.13413 |
| 1998 | 8.58586 |
| 1997 | 7.63947 |
| 1996 | 8.52449 |
| 1995 | 9.05515 |
| 1994 | 6.43787 |
| 1993 | 6.09964 |
| 1992 | 7.10089 |
| 1991 | 6.9922 |
| 1990 | 6.87528 |
| 1989 | 7.80236 |
| 1988 | 9.13317 |
| 1987 | 5.01007 |
| 1986 | 2.88322 |
| 1985 | 1.51884 |
| 1984 | 1.9183 |
| 1983 | - |
| 1982 | - |
| 1981 | - |
| 1980 | - |
| 1979 | - |
| 1978 | - |
| 1977 | - |
| 1976 | - |
| 1975 | - |
| 1974 | - |
| 1973 | - |
| 1972 | - |
| 1971 | - |
| 1970 | - |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |