| 年份 | 老挝 |
|---|---|
| 2023 | - |
| 2022 | 2.84721 |
| 2021 | 2.75883 |
| 2020 | 2.66483 |
| 2019 | 2.56922 |
| 2018 | 2.48152 |
| 2017 | 2.40076 |
| 2016 | 2.32235 |
| 2015 | 2.24693 |
| 2014 | 2.18067 |
| 2013 | 2.12471 |
| 2012 | 2.07468 |
| 2011 | 2.0307 |
| 2010 | 1.99286 |
| 2009 | 1.96201 |
| 2008 | 1.93942 |
| 2007 | 1.9234 |
| 2006 | 1.91149 |
| 2005 | 1.90249 |
| 2004 | 1.89701 |
| 2003 | 1.89398 |
| 2002 | 1.89366 |
| 2001 | 1.89762 |
| 2000 | 1.90377 |
| 1999 | 1.91044 |
| 1998 | 1.91491 |
| 1997 | 1.9173 |
| 1996 | 1.92277 |
| 1995 | 1.93584 |
| 1994 | 1.95656 |
| 1993 | 1.98471 |
| 1992 | 2.01829 |
| 1991 | 2.05193 |
| 1990 | 2.08256 |
| 1989 | 2.11004 |
| 1988 | 2.13354 |
| 1987 | 2.15307 |
| 1986 | 2.17177 |
| 1985 | 2.19121 |
| 1984 | 2.2101 |
| 1983 | 2.2278 |
| 1982 | 2.24429 |
| 1981 | 2.25768 |
| 1980 | 2.26657 |
| 1979 | 2.27139 |
| 1978 | 2.27311 |
| 1977 | 2.27226 |
| 1976 | 2.2696 |
| 1975 | 2.26538 |
| 1974 | 2.26004 |
| 1973 | 2.25232 |
| 1972 | 2.24177 |
| 1971 | 2.23199 |
| 1970 | 2.22594 |
| 1969 | 2.22338 |
| 1968 | 2.22467 |
| 1967 | 2.22821 |
| 1966 | 2.22679 |
| 1965 | 2.21553 |
| 1964 | 2.1956 |
| 1963 | 2.16685 |
| 1962 | 2.13059 |
| 1961 | 2.09471 |
| 1960 | 2.06414 |