| 年份 | 不丹 |
|---|---|
| 2023 | - |
| 2022 | 71.603 |
| 2021 | 71.061 |
| 2020 | 70.4417 |
| 2019 | 69.7467 |
| 2018 | 69.0146 |
| 2017 | 68.2962 |
| 2016 | 67.727 |
| 2015 | 67.2977 |
| 2014 | 66.8989 |
| 2013 | 66.5356 |
| 2012 | 66.1598 |
| 2011 | 65.7236 |
| 2010 | 65.2193 |
| 2009 | 64.659 |
| 2008 | 64.0461 |
| 2007 | 63.3927 |
| 2006 | 62.7333 |
| 2005 | 62.008 |
| 2004 | 61.1092 |
| 2003 | 60.1601 |
| 2002 | 59.3141 |
| 2001 | 58.5735 |
| 2000 | 57.9458 |
| 1999 | 57.4373 |
| 1998 | 56.966 |
| 1997 | 56.5103 |
| 1996 | 56.1287 |
| 1995 | 55.814 |
| 1994 | 55.5577 |
| 1993 | 55.3587 |
| 1992 | 55.2077 |
| 1991 | 55.1175 |
| 1990 | 55.0833 |
| 1989 | 55.0591 |
| 1988 | 55.0299 |
| 1987 | 55.021 |
| 1986 | 55.0315 |
| 1985 | 55.0608 |
| 1984 | 55.1077 |
| 1983 | 55.1733 |
| 1982 | 55.2612 |
| 1981 | 55.366 |
| 1980 | 55.4785 |
| 1979 | 55.5967 |
| 1978 | 55.7179 |
| 1977 | 55.8461 |
| 1976 | 55.9862 |
| 1975 | 56.1354 |
| 1974 | 56.2895 |
| 1973 | 56.4487 |
| 1972 | 56.6107 |
| 1971 | 56.7711 |
| 1970 | 56.9303 |
| 1969 | 57.0876 |
| 1968 | 57.2449 |
| 1967 | 57.4083 |
| 1966 | 57.5762 |
| 1965 | 57.7436 |
| 1964 | 57.7993 |
| 1963 | 57.7407 |
| 1962 | 57.5769 |
| 1961 | 57.3137 |
| 1960 | 57.0586 |