| 年份 | 老挝 |
|---|---|
| 2023 | - |
| 2022 | 4.88601 |
| 2021 | 4.80307 |
| 2020 | 4.7239 |
| 2019 | 4.64881 |
| 2018 | 4.58041 |
| 2017 | 4.51969 |
| 2016 | 4.4663 |
| 2015 | 4.42262 |
| 2014 | 4.38445 |
| 2013 | 4.34541 |
| 2012 | 4.30507 |
| 2011 | 4.26027 |
| 2010 | 4.20598 |
| 2009 | 4.14491 |
| 2008 | 4.08452 |
| 2007 | 4.02331 |
| 2006 | 3.95929 |
| 2005 | 3.89513 |
| 2004 | 3.82209 |
| 2003 | 3.73836 |
| 2002 | 3.65953 |
| 2001 | 3.5936 |
| 2000 | 3.54375 |
| 1999 | 3.47029 |
| 1998 | 3.37853 |
| 1997 | 3.30251 |
| 1996 | 3.23162 |
| 1995 | 3.16156 |
| 1994 | 3.15113 |
| 1993 | 3.17701 |
| 1992 | 3.17096 |
| 1991 | 3.16493 |
| 1990 | 3.16591 |
| 1989 | 3.1797 |
| 1988 | 3.20915 |
| 1987 | 3.25146 |
| 1986 | 3.29892 |
| 1985 | 3.34522 |
| 1984 | 3.38841 |
| 1983 | 3.42562 |
| 1982 | 3.45764 |
| 1981 | 3.49254 |
| 1980 | 3.53518 |
| 1979 | 3.58313 |
| 1978 | 3.63425 |
| 1977 | 3.68753 |
| 1976 | 3.73877 |
| 1975 | 3.78472 |
| 1974 | 3.82558 |
| 1973 | 3.86239 |
| 1972 | 3.89523 |
| 1971 | 3.92617 |
| 1970 | 3.95745 |
| 1969 | 3.98816 |
| 1968 | 4.01743 |
| 1967 | 4.0457 |
| 1966 | 4.07194 |
| 1965 | 4.09547 |
| 1964 | 4.11669 |
| 1963 | 4.13628 |
| 1962 | 4.15166 |
| 1961 | 4.16085 |
| 1960 | 4.16378 |