| 年份 | 斯里兰卡 |
|---|---|
| 2023 | - |
| 2022 | 0.98908 |
| 2021 | 1.85795 |
| 2020 | 1.21697 |
| 2019 | 1.20011 |
| 2018 | 1.25507 |
| 2017 | 0.776717 |
| 2016 | 0.71613 |
| 2015 | 0.665147 |
| 2014 | 0.618203 |
| 2013 | 0.554824 |
| 2012 | 0.669341 |
| 2011 | 0.838434 |
| 2010 | 0.816641 |
| 2009 | 0.883424 |
| 2008 | 0.943482 |
| 2007 | 0.953541 |
| 2006 | 0.913555 |
| 2005 | 0.849384 |
| 2004 | 0.883528 |
| 2003 | 0.920317 |
| 2002 | 0.914302 |
| 2001 | 0.681858 |
| 2000 | 0.478906 |
| 1999 | 0.50731 |
| 1998 | 0.516633 |
| 1997 | 0.60729 |
| 1996 | 0.707461 |
| 1995 | 0.835228 |
| 1994 | 0.952192 |
| 1993 | 1.05375 |
| 1992 | 1.09997 |
| 1991 | 1.14666 |
| 1990 | 1.16257 |
| 1989 | 1.20363 |
| 1988 | 1.27399 |
| 1987 | 1.31375 |
| 1986 | 1.30654 |
| 1985 | 1.28913 |
| 1984 | 1.27777 |
| 1983 | 1.32717 |
| 1982 | 1.47993 |
| 1981 | 2.06396 |
| 1980 | 2.33246 |
| 1979 | 2.38379 |
| 1978 | 2.34609 |
| 1977 | 2.32685 |
| 1976 | 2.35037 |
| 1975 | 2.36611 |
| 1974 | 2.42685 |
| 1973 | 2.51775 |
| 1972 | 2.59011 |
| 1971 | 2.68443 |
| 1970 | 2.75835 |
| 1969 | 2.8348 |
| 1968 | 2.92041 |
| 1967 | 2.93459 |
| 1966 | 2.93388 |
| 1965 | 2.95752 |
| 1964 | 2.98767 |
| 1963 | 3.37848 |
| 1962 | 3.37267 |
| 1961 | 3.38871 |
| 1960 | - |