| 年份 | 老挝  | 
                                                            
|---|---|
| 2023 | - | 
| 2022 | 1.3965 | 
| 2021 | 1.43321 | 
| 2020 | 1.47746 | 
| 2019 | 1.4954 | 
| 2018 | 1.51871 | 
| 2017 | 1.53436 | 
| 2016 | 1.51981 | 
| 2015 | 1.42396 | 
| 2014 | 1.36491 | 
| 2013 | 1.40265 | 
| 2012 | 1.43097 | 
| 2011 | 1.4586 | 
| 2010 | 1.48948 | 
| 2009 | 1.52147 | 
| 2008 | 1.55232 | 
| 2007 | 1.58087 | 
| 2006 | 1.58692 | 
| 2005 | 1.45949 | 
| 2004 | 1.38084 | 
| 2003 | 1.46904 | 
| 2002 | 1.55307 | 
| 2001 | 1.62286 | 
| 2000 | 1.68601 | 
| 1999 | 1.75945 | 
| 1998 | 1.85404 | 
| 1997 | 2.09188 | 
| 1996 | 2.33644 | 
| 1995 | 2.45472 | 
| 1994 | 2.58417 | 
| 1993 | 2.6864 | 
| 1992 | 2.7536 | 
| 1991 | 2.80609 | 
| 1990 | 2.84249 | 
| 1989 | 2.86822 | 
| 1988 | 2.86937 | 
| 1987 | 2.85126 | 
| 1986 | 2.81405 | 
| 1985 | 2.75428 | 
| 1984 | 2.67548 | 
| 1983 | 2.57733 | 
| 1982 | 2.42362 | 
| 1981 | 2.2037 | 
| 1980 | 1.95434 | 
| 1979 | 1.73922 | 
| 1978 | 1.65631 | 
| 1977 | 1.73373 | 
| 1976 | 1.9491 | 
| 1975 | 2.20957 | 
| 1974 | 2.38046 | 
| 1973 | 2.43673 | 
| 1972 | 2.43507 | 
| 1971 | 2.41699 | 
| 1970 | 2.38965 | 
| 1969 | 2.36458 | 
| 1968 | 2.34566 | 
| 1967 | 2.31666 | 
| 1966 | 2.30178 | 
| 1965 | 2.29312 | 
| 1964 | 2.27438 | 
| 1963 | 2.29625 | 
| 1962 | 2.29816 | 
| 1961 | 2.26431 | 
| 1960 | - |