| 年份 | 文莱达鲁萨兰国 |
|---|---|
| 2023 | - |
| 2022 | 1.85058 |
| 2021 | 1.70387 |
| 2020 | 1.5581 |
| 2019 | 1.41638 |
| 2018 | 1.29004 |
| 2017 | 1.1979 |
| 2016 | 1.14855 |
| 2015 | 1.13436 |
| 2014 | 1.13891 |
| 2013 | 1.14078 |
| 2012 | 1.12563 |
| 2011 | 1.09343 |
| 2010 | 1.05922 |
| 2009 | 1.03443 |
| 2008 | 1.01725 |
| 2007 | 1.0055 |
| 2006 | 0.996466 |
| 2005 | 0.984946 |
| 2004 | 0.961813 |
| 2003 | 0.924911 |
| 2002 | 0.878435 |
| 2001 | 0.829259 |
| 2000 | 0.787925 |
| 1999 | 0.762059 |
| 1998 | 0.749577 |
| 1997 | 0.74299 |
| 1996 | 0.735971 |
| 1995 | 0.72313 |
| 1994 | 0.704246 |
| 1993 | 0.683727 |
| 1992 | 0.665317 |
| 1991 | 0.649482 |
| 1990 | 0.641141 |
| 1989 | 0.645725 |
| 1988 | 0.666831 |
| 1987 | 0.703319 |
| 1986 | 0.748693 |
| 1985 | 0.793302 |
| 1984 | 0.82351 |
| 1983 | 0.836398 |
| 1982 | 0.841956 |
| 1981 | 0.849917 |
| 1980 | 0.855576 |
| 1979 | 0.853864 |
| 1978 | 0.841979 |
| 1977 | 0.823958 |
| 1976 | 0.808591 |
| 1975 | 0.793814 |
| 1974 | 0.782029 |
| 1973 | 0.770435 |
| 1972 | 0.744013 |
| 1971 | 0.716502 |
| 1970 | 0.722219 |
| 1969 | 0.750367 |
| 1968 | 0.781188 |
| 1967 | 0.81476 |
| 1966 | 0.840764 |
| 1965 | 0.847016 |
| 1964 | 0.82877 |
| 1963 | 0.791295 |
| 1962 | 0.750037 |
| 1961 | 0.717823 |
| 1960 | 0.713583 |