| 年份 | 老挝 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 2.496 |
| 2020 | 2.541 |
| 2019 | 2.571 |
| 2018 | 2.619 |
| 2017 | 2.671 |
| 2016 | 2.722 |
| 2015 | 2.766 |
| 2014 | 2.802 |
| 2013 | 2.872 |
| 2012 | 2.953 |
| 2011 | 3.049 |
| 2010 | 3.145 |
| 2009 | 3.264 |
| 2008 | 3.375 |
| 2007 | 3.494 |
| 2006 | 3.597 |
| 2005 | 3.673 |
| 2004 | 3.808 |
| 2003 | 3.911 |
| 2002 | 4.037 |
| 2001 | 4.209 |
| 2000 | 4.4 |
| 1999 | 4.655 |
| 1998 | 4.776 |
| 1997 | 4.964 |
| 1996 | 5.148 |
| 1995 | 5.346 |
| 1994 | 5.548 |
| 1993 | 5.75 |
| 1992 | 5.882 |
| 1991 | 5.996 |
| 1990 | 6.084 |
| 1989 | 6.153 |
| 1988 | 6.21 |
| 1987 | 6.273 |
| 1986 | 6.321 |
| 1985 | 6.361 |
| 1984 | 6.381 |
| 1983 | 6.376 |
| 1982 | 6.369 |
| 1981 | 6.35 |
| 1980 | 6.332 |
| 1979 | 6.314 |
| 1978 | 6.298 |
| 1977 | 6.293 |
| 1976 | 6.289 |
| 1975 | 6.287 |
| 1974 | 6.289 |
| 1973 | 6.281 |
| 1972 | 6.284 |
| 1971 | 6.295 |
| 1970 | 6.31 |
| 1969 | 6.301 |
| 1968 | 6.298 |
| 1967 | 6.306 |
| 1966 | 6.307 |
| 1965 | 6.316 |
| 1964 | 6.313 |
| 1963 | 6.318 |
| 1962 | 6.313 |
| 1961 | 6.31 |
| 1960 | 6.292 |