| 年份 | 老挝 |
|---|---|
| 2023 | - |
| 2022 | 1.31599 |
| 2021 | 1.2787 |
| 2020 | 1.24796 |
| 2019 | 1.21993 |
| 2018 | 1.19707 |
| 2017 | 1.18006 |
| 2016 | 1.16686 |
| 2015 | 1.15695 |
| 2014 | 1.15021 |
| 2013 | 1.14442 |
| 2012 | 1.13826 |
| 2011 | 1.13223 |
| 2010 | 1.12632 |
| 2009 | 1.12083 |
| 2008 | 1.11555 |
| 2007 | 1.10865 |
| 2006 | 1.09767 |
| 2005 | 1.08432 |
| 2004 | 1.07926 |
| 2003 | 1.08358 |
| 2002 | 1.09067 |
| 2001 | 1.10018 |
| 2000 | 1.10948 |
| 1999 | 1.11625 |
| 1998 | 1.11829 |
| 1997 | 1.11422 |
| 1996 | 1.11106 |
| 1995 | 1.11259 |
| 1994 | 1.11532 |
| 1993 | 1.11895 |
| 1992 | 1.12333 |
| 1991 | 1.12777 |
| 1990 | 1.13196 |
| 1989 | 1.13587 |
| 1988 | 1.13946 |
| 1987 | 1.14236 |
| 1986 | 1.14359 |
| 1985 | 1.14267 |
| 1984 | 1.13929 |
| 1983 | 1.13295 |
| 1982 | 1.1243 |
| 1981 | 1.11524 |
| 1980 | 1.10679 |
| 1979 | 1.09947 |
| 1978 | 1.09421 |
| 1977 | 1.09018 |
| 1976 | 1.08492 |
| 1975 | 1.07625 |
| 1974 | 1.06461 |
| 1973 | 1.04953 |
| 1972 | 1.03057 |
| 1971 | 1.01116 |
| 1970 | 0.993901 |
| 1969 | 0.978721 |
| 1968 | 0.965188 |
| 1967 | 0.953166 |
| 1966 | 0.940325 |
| 1965 | 0.924502 |
| 1964 | 0.906369 |
| 1963 | 0.886662 |
| 1962 | 0.865046 |
| 1961 | 0.842056 |
| 1960 | 0.817954 |