| 年份 | 不丹 |
|---|---|
| 2023 | - |
| 2022 | 39.659 |
| 2021 | 40.724 |
| 2020 | 41.9615 |
| 2019 | 43.3758 |
| 2018 | 44.8967 |
| 2017 | 46.421 |
| 2016 | 47.6515 |
| 2015 | 48.5936 |
| 2014 | 49.4792 |
| 2013 | 50.2957 |
| 2012 | 51.149 |
| 2011 | 52.1525 |
| 2010 | 53.3287 |
| 2009 | 54.6577 |
| 2008 | 56.1374 |
| 2007 | 57.7469 |
| 2006 | 59.4051 |
| 2005 | 61.2695 |
| 2004 | 63.6416 |
| 2003 | 66.2232 |
| 2002 | 68.5939 |
| 2001 | 70.7258 |
| 2000 | 72.5752 |
| 1999 | 74.1025 |
| 1998 | 75.5434 |
| 1997 | 76.9589 |
| 1996 | 78.1619 |
| 1995 | 79.1665 |
| 1994 | 79.9931 |
| 1993 | 80.6402 |
| 1992 | 81.1342 |
| 1991 | 81.4303 |
| 1990 | 81.5428 |
| 1989 | 81.6231 |
| 1988 | 81.7195 |
| 1987 | 81.7489 |
| 1986 | 81.7143 |
| 1985 | 81.6174 |
| 1984 | 81.4633 |
| 1983 | 81.2467 |
| 1982 | 80.9592 |
| 1981 | 80.6165 |
| 1980 | 80.2503 |
| 1979 | 79.8666 |
| 1978 | 79.4753 |
| 1977 | 79.0639 |
| 1976 | 78.6149 |
| 1975 | 78.1404 |
| 1974 | 77.6527 |
| 1973 | 77.1524 |
| 1972 | 76.6447 |
| 1971 | 76.1461 |
| 1970 | 75.6531 |
| 1969 | 75.1695 |
| 1968 | 74.6882 |
| 1967 | 74.1916 |
| 1966 | 73.6824 |
| 1965 | 73.1793 |
| 1964 | 73.0131 |
| 1963 | 73.1879 |
| 1962 | 73.6811 |
| 1961 | 74.4781 |
| 1960 | 75.2588 |