| 年份 | 斯里兰卡 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 0.0832445 |
| 2020 | 0.0850401 |
| 2019 | 0.0722572 |
| 2018 | 0.0648341 |
| 2017 | 0.0888765 |
| 2016 | 0.120809 |
| 2015 | 0.116816 |
| 2014 | 0.106716 |
| 2013 | 0.111207 |
| 2012 | 0.137235 |
| 2011 | 0.161869 |
| 2010 | 0.181248 |
| 2009 | 0.154025 |
| 2008 | 0.168491 |
| 2007 | 0.196498 |
| 2006 | 0.164174 |
| 2005 | 0.124199 |
| 2004 | 0.147494 |
| 2003 | 0.196685 |
| 2002 | 0.203788 |
| 2001 | 0.19622 |
| 2000 | 0.190956 |
| 1999 | 0.214152 |
| 1998 | 0.18809 |
| 1997 | 0.211594 |
| 1996 | 0.353077 |
| 1995 | 0.387054 |
| 1994 | 0.344406 |
| 1993 | 0.442218 |
| 1992 | 0.508323 |
| 1991 | 0.541072 |
| 1990 | 0.467032 |
| 1989 | 0.449054 |
| 1988 | 0.462215 |
| 1987 | 0.458944 |
| 1986 | 0.51245 |
| 1985 | 0.297895 |
| 1984 | 0.41537 |
| 1983 | 0.618973 |
| 1982 | 0.930365 |
| 1981 | 0.665315 |
| 1980 | 0.836147 |
| 1979 | 0.824142 |
| 1978 | 2.22462 |
| 1977 | 1.47834 |
| 1976 | 0.531683 |
| 1975 | 0.776307 |
| 1974 | 0.38484 |
| 1973 | 0.412492 |
| 1972 | 0.293824 |
| 1971 | 0.31177 |
| 1970 | 0.349014 |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |