| 年份 | 斯里兰卡 |
|---|---|
| 2023 | - |
| 2022 | 7.46353 |
| 2021 | 7.60178 |
| 2020 | 7.75195 |
| 2019 | 7.92016 |
| 2018 | 8.11486 |
| 2017 | 8.32255 |
| 2016 | 8.4938 |
| 2015 | 8.6182 |
| 2014 | 8.73251 |
| 2013 | 8.84193 |
| 2012 | 8.94364 |
| 2011 | 9.06647 |
| 2010 | 9.18833 |
| 2009 | 9.25358 |
| 2008 | 9.2674 |
| 2007 | 9.26147 |
| 2006 | 9.25676 |
| 2005 | 9.24118 |
| 2004 | 9.18873 |
| 2003 | 9.09312 |
| 2002 | 8.98287 |
| 2001 | 8.88935 |
| 2000 | 8.86405 |
| 1999 | 8.94452 |
| 1998 | 9.10131 |
| 1997 | 9.29238 |
| 1996 | 9.4736 |
| 1995 | 9.62293 |
| 1994 | 9.75093 |
| 1993 | 9.85535 |
| 1992 | 9.94048 |
| 1991 | 10.0444 |
| 1990 | 10.202 |
| 1989 | 10.4136 |
| 1988 | 10.6759 |
| 1987 | 11.0056 |
| 1986 | 11.4217 |
| 1985 | 11.8634 |
| 1984 | 12.2671 |
| 1983 | 12.6079 |
| 1982 | 12.8057 |
| 1981 | 12.8378 |
| 1980 | 12.7726 |
| 1979 | 12.6636 |
| 1978 | 12.5882 |
| 1977 | 12.6161 |
| 1976 | 12.7078 |
| 1975 | 12.8605 |
| 1974 | 13.0872 |
| 1973 | 13.344 |
| 1972 | 13.6127 |
| 1971 | 13.875 |
| 1970 | 14.1053 |
| 1969 | 14.3134 |
| 1968 | 14.4918 |
| 1967 | 14.6279 |
| 1966 | 14.7661 |
| 1965 | 14.9368 |
| 1964 | 15.1146 |
| 1963 | 15.2765 |
| 1962 | 15.3889 |
| 1961 | 15.4248 |
| 1960 | 15.3875 |