| 年份 | 老挝 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 13.401 |
| 2020 | 13.6159 |
| 2019 | 14.7503 |
| 2018 | 15.2278 |
| 2017 | 15.9591 |
| 2016 | 17.2258 |
| 2015 | 17.8844 |
| 2014 | 18.0339 |
| 2013 | 18.048 |
| 2012 | 16.0385 |
| 2011 | 15.1269 |
| 2010 | 14.7435 |
| 2009 | 14.6337 |
| 2008 | 11.6134 |
| 2007 | 9.58578 |
| 2006 | 7.16871 |
| 2005 | 6.34917 |
| 2004 | 4.30205 |
| 2003 | 3.48742 |
| 2002 | 2.9371 |
| 2001 | 2.25642 |
| 2000 | 1.81846 |
| 1999 | 1.50555 |
| 1998 | 1.21209 |
| 1997 | 1.54697 |
| 1996 | 1.44318 |
| 1995 | 0.94224 |
| 1994 | 0.71493 |
| 1993 | 0.78581 |
| 1992 | - |
| 1991 | - |
| 1990 | 0.72874 |
| 1989 | - |
| 1988 | 0.98548 |
| 1987 | - |
| 1986 | 1.02937 |
| 1985 | 0.98551 |
| 1984 | - |
| 1983 | 0.724 |
| 1982 | 0.56298 |
| 1981 | 0.2767 |
| 1980 | 0.19179 |
| 1979 | - |
| 1978 | - |
| 1977 | - |
| 1976 | - |
| 1975 | 0.16702 |
| 1974 | 0.13028 |
| 1973 | 0.06006 |
| 1972 | 0.07205 |
| 1971 | 0.06658 |
| 1970 | - |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |