| 年份 | 斯里兰卡 |
|---|---|
| 2023 | - |
| 2022 | 5.4182 |
| 2021 | 5.44772 |
| 2020 | 5.47339 |
| 2019 | 5.4865 |
| 2018 | 5.4719 |
| 2017 | 5.40459 |
| 2016 | 5.32751 |
| 2015 | 5.22511 |
| 2014 | 5.10947 |
| 2013 | 5.05214 |
| 2012 | 5.02679 |
| 2011 | 4.9493 |
| 2010 | 4.86573 |
| 2009 | 4.78496 |
| 2008 | 4.66974 |
| 2007 | 4.55093 |
| 2006 | 4.42189 |
| 2005 | 4.27822 |
| 2004 | 4.14743 |
| 2003 | 4.01955 |
| 2002 | 3.87884 |
| 2001 | 3.74762 |
| 2000 | 3.63463 |
| 1999 | 3.53642 |
| 1998 | 3.45112 |
| 1997 | 3.38057 |
| 1996 | 3.32139 |
| 1995 | 3.27238 |
| 1994 | 3.23316 |
| 1993 | 3.2003 |
| 1992 | 3.17447 |
| 1991 | 3.16146 |
| 1990 | 3.16266 |
| 1989 | 3.17615 |
| 1988 | 3.20035 |
| 1987 | 3.23119 |
| 1986 | 3.26003 |
| 1985 | 3.2812 |
| 1984 | 3.29489 |
| 1983 | 3.30004 |
| 1982 | 3.29793 |
| 1981 | 3.29456 |
| 1980 | 3.29091 |
| 1979 | 3.28347 |
| 1978 | 3.26881 |
| 1977 | 3.24785 |
| 1976 | 3.22462 |
| 1975 | 3.2009 |
| 1974 | 3.17718 |
| 1973 | 3.1562 |
| 1972 | 3.13763 |
| 1971 | 3.11589 |
| 1970 | 3.09017 |
| 1969 | 3.06371 |
| 1968 | 3.03511 |
| 1967 | 3.00411 |
| 1966 | 2.97446 |
| 1965 | 2.94887 |
| 1964 | 2.9279 |
| 1963 | 2.91252 |
| 1962 | 2.90026 |
| 1961 | 2.88324 |
| 1960 | 2.85813 |