| 年份 | 文莱达鲁萨兰国 |
|---|---|
| 2023 | - |
| 2022 | 4.22601 |
| 2021 | 4.04012 |
| 2020 | 3.83467 |
| 2019 | 3.62092 |
| 2018 | 3.41129 |
| 2017 | 3.21043 |
| 2016 | 3.01798 |
| 2015 | 2.8296 |
| 2014 | 2.63913 |
| 2013 | 2.44658 |
| 2012 | 2.25533 |
| 2011 | 2.06928 |
| 2010 | 1.93537 |
| 2009 | 1.85533 |
| 2008 | 1.78958 |
| 2007 | 1.74513 |
| 2006 | 1.72356 |
| 2005 | 1.7203 |
| 2004 | 1.72087 |
| 2003 | 1.71002 |
| 2002 | 1.68184 |
| 2001 | 1.63544 |
| 2000 | 1.57802 |
| 1999 | 1.52032 |
| 1998 | 1.46925 |
| 1997 | 1.42755 |
| 1996 | 1.40104 |
| 1995 | 1.39005 |
| 1994 | 1.38601 |
| 1993 | 1.37944 |
| 1992 | 1.36044 |
| 1991 | 1.3455 |
| 1990 | 1.35101 |
| 1989 | 1.36571 |
| 1988 | 1.38431 |
| 1987 | 1.41114 |
| 1986 | 1.44751 |
| 1985 | 1.49175 |
| 1984 | 1.53725 |
| 1983 | 1.5705 |
| 1982 | 1.57968 |
| 1981 | 1.56286 |
| 1980 | 1.53117 |
| 1979 | 1.5014 |
| 1978 | 1.49176 |
| 1977 | 1.5083 |
| 1976 | 1.54302 |
| 1975 | 1.59665 |
| 1974 | 1.66567 |
| 1973 | 1.73239 |
| 1972 | 1.78579 |
| 1971 | 1.81211 |
| 1970 | 1.8065 |
| 1969 | 1.78706 |
| 1968 | 1.77007 |
| 1967 | 1.7657 |
| 1966 | 1.78506 |
| 1965 | 1.82608 |
| 1964 | 1.88242 |
| 1963 | 1.94983 |
| 1962 | 2.01913 |
| 1961 | 2.08688 |
| 1960 | 2.12627 |