| 年份 | 斯里兰卡 |
|---|---|
| 2023 | - |
| 2022 | 1.43043 |
| 2021 | 1.89425 |
| 2020 | 1.73989 |
| 2019 | 1.7522 |
| 2018 | 1.73469 |
| 2017 | 1.97693 |
| 2016 | 1.97936 |
| 2015 | 2.41701 |
| 2014 | 2.41265 |
| 2013 | 2.15405 |
| 2012 | 2.1552 |
| 2011 | 2.68532 |
| 2010 | 2.70075 |
| 2009 | 3.1619 |
| 2008 | 3.2436 |
| 2007 | 3.26061 |
| 2006 | 2.79877 |
| 2005 | 2.63953 |
| 2004 | 2.99736 |
| 2003 | 2.86891 |
| 2002 | 3.34259 |
| 2001 | 4.28699 |
| 2000 | 5.03387 |
| 1999 | 4.03016 |
| 1998 | 4.64346 |
| 1997 | 4.6306 |
| 1996 | 5.51978 |
| 1995 | 5.86113 |
| 1994 | 3.72934 |
| 1993 | 3.43179 |
| 1992 | 3.36764 |
| 1991 | 3.08209 |
| 1990 | 2.32849 |
| 1989 | 1.7986 |
| 1988 | 2.37118 |
| 1987 | 3.39315 |
| 1986 | 2.69666 |
| 1985 | 3.16077 |
| 1984 | 0.922431 |
| 1983 | 0.889137 |
| 1982 | 0.544741 |
| 1981 | 0.626798 |
| 1980 | 0.765779 |
| 1979 | 0.834463 |
| 1978 | 0.803 |
| 1977 | 0.684374 |
| 1976 | 0.659239 |
| 1975 | 0.80359 |
| 1974 | 0.795086 |
| 1973 | 0.87481 |
| 1972 | 1.18581 |
| 1971 | 1.36263 |
| 1970 | 0.916642 |
| 1969 | 0.807396 |
| 1968 | 0.794532 |
| 1967 | 0.845137 |
| 1966 | 0.872916 |
| 1965 | 0.85261 |
| 1964 | 0.851726 |
| 1963 | 0.897792 |
| 1962 | 1.08286 |
| 1961 | 1.18327 |
| 1960 | 1.18305 |