| 年份 | 老挝 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 0.164847 |
| 2020 | 0.167227 |
| 2019 | 0.179644 |
| 2018 | 0.192456 |
| 2017 | 0.205661 |
| 2016 | 0.21926 |
| 2015 | 0.221984 |
| 2014 | 0.224525 |
| 2013 | 0.226959 |
| 2012 | 0.22478 |
| 2011 | 0.222557 |
| 2010 | 0.221399 |
| 2009 | 0.218301 |
| 2008 | 0.210239 |
| 2007 | 0.205252 |
| 2006 | 0.201796 |
| 2005 | 0.196481 |
| 2004 | 0.191569 |
| 2003 | 0.186322 |
| 2002 | 0.181053 |
| 2001 | 0.175734 |
| 2000 | 0.169402 |
| 1999 | 0.16423 |
| 1998 | 0.164287 |
| 1997 | 0.165808 |
| 1996 | 0.163365 |
| 1995 | 0.168039 |
| 1994 | 0.170967 |
| 1993 | 0.170534 |
| 1992 | 0.175177 |
| 1991 | 0.180067 |
| 1990 | 0.185192 |
| 1989 | 0.189578 |
| 1988 | 0.195094 |
| 1987 | 0.200268 |
| 1986 | 0.20606 |
| 1985 | 0.211674 |
| 1984 | 0.217036 |
| 1983 | 0.22151 |
| 1982 | 0.227293 |
| 1981 | 0.231386 |
| 1980 | 0.236541 |
| 1979 | 0.24121 |
| 1978 | 0.243868 |
| 1977 | 0.246342 |
| 1976 | 0.247394 |
| 1975 | 0.248944 |
| 1974 | 0.251113 |
| 1973 | 0.250212 |
| 1972 | 0.249262 |
| 1971 | 0.24446 |
| 1970 | 0.248572 |
| 1969 | 0.252669 |
| 1968 | 0.257931 |
| 1967 | 0.260842 |
| 1966 | 0.266956 |
| 1965 | 0.268969 |
| 1964 | 0.275208 |
| 1963 | 0.281539 |
| 1962 | 0.288079 |
| 1961 | 0.294776 |
| 1960 | - |