| 年份 | 斯里兰卡 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 5.8 |
| 2020 | 6 |
| 2019 | 6.2 |
| 2018 | 6.5 |
| 2017 | 6.8 |
| 2016 | 7.1 |
| 2015 | 7.5 |
| 2014 | 8 |
| 2013 | 8.4 |
| 2012 | 8.9 |
| 2011 | 9.3 |
| 2010 | 9.6 |
| 2009 | 13.6 |
| 2008 | 10.3 |
| 2007 | 10.8 |
| 2006 | 11.5 |
| 2005 | 12.1 |
| 2004 | 17.6 |
| 2003 | 13 |
| 2002 | 13.4 |
| 2001 | 13.8 |
| 2000 | 14.2 |
| 1999 | 14.7 |
| 1998 | 15.3 |
| 1997 | 15.9 |
| 1996 | 16.4 |
| 1995 | 17 |
| 1994 | 17.6 |
| 1993 | 18.2 |
| 1992 | 18.7 |
| 1991 | 19.1 |
| 1990 | 19.4 |
| 1989 | 21.2 |
| 1988 | 20.2 |
| 1987 | 21.3 |
| 1986 | 23 |
| 1985 | 25.2 |
| 1984 | 27.6 |
| 1983 | 30.1 |
| 1982 | 32.4 |
| 1981 | 34.6 |
| 1980 | 36.8 |
| 1979 | 39.4 |
| 1978 | 42.1 |
| 1977 | 44.8 |
| 1976 | 47.1 |
| 1975 | 49 |
| 1974 | 50.3 |
| 1973 | 51.3 |
| 1972 | 51.9 |
| 1971 | 52.4 |
| 1970 | 53 |
| 1969 | 53.8 |
| 1968 | 54.9 |
| 1967 | 56.4 |
| 1966 | 58.1 |
| 1965 | 59.7 |
| 1964 | 61.1 |
| 1963 | 62.3 |
| 1962 | 63.6 |
| 1961 | 65.4 |
| 1960 | 68.1 |