| 年份 | 老挝 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | - |
| 2020 | - |
| 2019 | - |
| 2018 | - |
| 2017 | - |
| 2016 | - |
| 2015 | - |
| 2014 | - |
| 2013 | - |
| 2012 | 0.229632 |
| 2011 | 0.463089 |
| 2010 | 0.397807 |
| 2009 | 0.215515 |
| 2008 | 0.556859 |
| 2007 | 0.433646 |
| 2006 | 0.16964 |
| 2005 | 0.191304 |
| 2004 | 0.297933 |
| 2003 | 0.0516 |
| 2002 | 0.0685645 |
| 2001 | 0.104442 |
| 2000 | 0.04459 |
| 1999 | 0.0193122 |
| 1998 | 0.0324938 |
| 1997 | 0.000327941 |
| 1996 | 0.000678561 |
| 1995 | 0.00305415 |
| 1994 | 0.000197181 |
| 1993 | 0.000165065 |
| 1992 | 0.00175465 |
| 1991 | 0.00208737 |
| 1990 | 0.00183038 |
| 1989 | 0.000652627 |
| 1988 | 0.000462895 |
| 1987 | 1.91502E-5 |
| 1986 | 0.000550353 |
| 1985 | 0.000438654 |
| 1984 | 0.000188018 |
| 1983 | - |
| 1982 | - |
| 1981 | - |
| 1980 | - |
| 1979 | - |
| 1978 | - |
| 1977 | - |
| 1976 | - |
| 1975 | - |
| 1974 | - |
| 1973 | - |
| 1972 | - |
| 1971 | - |
| 1970 | - |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |