| 年份 | 老挝 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | - |
| 2020 | 4.35767 |
| 2019 | 4.4022 |
| 2018 | 4.48395 |
| 2017 | 4.55943 |
| 2016 | 4.64435 |
| 2015 | 4.72895 |
| 2014 | 4.81685 |
| 2013 | 4.90787 |
| 2012 | 5.00028 |
| 2011 | 5.09616 |
| 2010 | 5.19769 |
| 2009 | 5.30445 |
| 2008 | 5.41988 |
| 2007 | 5.54897 |
| 2006 | 5.68865 |
| 2005 | 5.82989 |
| 2004 | 5.96596 |
| 2003 | 6.09784 |
| 2002 | 6.22787 |
| 2001 | 6.35964 |
| 2000 | 6.4934 |
| 1999 | 6.62862 |
| 1998 | 6.75874 |
| 1997 | 6.90426 |
| 1996 | 7.48291 |
| 1995 | 7.6413 |
| 1994 | 2.56409 |
| 1993 | 2.15338 |
| 1992 | 2.20534 |
| 1991 | 3.23897 |
| 1990 | 3.45283 |
| 1989 | - |
| 1988 | - |
| 1987 | - |
| 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 | - |