| 年份 | 不丹 |
|---|---|
| 2023 | - |
| 2022 | 22.1431 |
| 2021 | 22.8027 |
| 2020 | 23.5263 |
| 2019 | 24.3032 |
| 2018 | 25.0857 |
| 2017 | 25.8207 |
| 2016 | 26.4602 |
| 2015 | 27.0266 |
| 2014 | 27.5488 |
| 2013 | 28.0216 |
| 2012 | 28.5 |
| 2011 | 29.0361 |
| 2010 | 29.6389 |
| 2009 | 30.2937 |
| 2008 | 30.9938 |
| 2007 | 31.7257 |
| 2006 | 32.4553 |
| 2005 | 33.2579 |
| 2004 | 34.2704 |
| 2003 | 35.3681 |
| 2002 | 36.3759 |
| 2001 | 37.2864 |
| 2000 | 38.0889 |
| 1999 | 38.7753 |
| 1998 | 39.3861 |
| 1997 | 39.9384 |
| 1996 | 40.4128 |
| 1995 | 40.8148 |
| 1994 | 41.1537 |
| 1993 | 41.4311 |
| 1992 | 41.6607 |
| 1991 | 41.8207 |
| 1990 | 41.9187 |
| 1989 | 42.0013 |
| 1988 | 42.0835 |
| 1987 | 42.142 |
| 1986 | 42.178 |
| 1985 | 42.1924 |
| 1984 | 42.1864 |
| 1983 | 42.1585 |
| 1982 | 42.1063 |
| 1981 | 42.0344 |
| 1980 | 41.9528 |
| 1979 | 41.8633 |
| 1978 | 41.7681 |
| 1977 | 41.663 |
| 1976 | 41.5438 |
| 1975 | 41.415 |
| 1974 | 41.279 |
| 1973 | 41.1367 |
| 1972 | 40.9882 |
| 1971 | 40.8389 |
| 1970 | 40.6901 |
| 1969 | 40.5411 |
| 1968 | 40.3898 |
| 1967 | 40.2296 |
| 1966 | 40.0635 |
| 1965 | 39.8965 |
| 1964 | 39.8387 |
| 1963 | 39.8952 |
| 1962 | 40.0574 |
| 1961 | 40.3161 |
| 1960 | 40.5644 |