| 年份 | 老挝 |
|---|---|
| 2023 | - |
| 2022 | 0.634467 |
| 2021 | 0.625919 |
| 2020 | 0.621791 |
| 2019 | 0.619478 |
| 2018 | 0.62045 |
| 2017 | 0.624871 |
| 2016 | 0.632623 |
| 2015 | 0.644153 |
| 2014 | 0.651662 |
| 2013 | 0.652628 |
| 2012 | 0.652172 |
| 2011 | 0.649319 |
| 2010 | 0.64434 |
| 2009 | 0.638612 |
| 2008 | 0.632848 |
| 2007 | 0.627469 |
| 2006 | 0.624287 |
| 2005 | 0.623631 |
| 2004 | 0.619109 |
| 2003 | 0.60823 |
| 2002 | 0.594375 |
| 2001 | 0.577994 |
| 2000 | 0.559631 |
| 1999 | 0.540113 |
| 1998 | 0.520041 |
| 1997 | 0.499719 |
| 1996 | 0.488978 |
| 1995 | 0.488081 |
| 1994 | 0.487388 |
| 1993 | 0.486949 |
| 1992 | 0.486367 |
| 1991 | 0.485323 |
| 1990 | 0.483606 |
| 1989 | 0.481085 |
| 1988 | 0.477411 |
| 1987 | 0.472835 |
| 1986 | 0.468318 |
| 1985 | 0.464732 |
| 1984 | 0.462231 |
| 1983 | 0.460957 |
| 1982 | 0.460594 |
| 1981 | 0.459578 |
| 1980 | 0.456821 |
| 1979 | 0.452658 |
| 1978 | 0.447242 |
| 1977 | 0.440479 |
| 1976 | 0.433866 |
| 1975 | 0.428348 |
| 1974 | 0.423729 |
| 1973 | 0.420365 |
| 1972 | 0.418088 |
| 1971 | 0.415365 |
| 1970 | 0.411387 |
| 1969 | 0.406291 |
| 1968 | 0.399904 |
| 1967 | 0.392476 |
| 1966 | 0.385049 |
| 1965 | 0.378254 |
| 1964 | 0.371888 |
| 1963 | 0.365838 |
| 1962 | 0.360463 |
| 1961 | 0.356459 |
| 1960 | 0.354595 |