| 年份 | 不丹 |
|---|---|
| 2023 | - |
| 2022 | 30.9249 |
| 2021 | 32.0889 |
| 2020 | 33.3983 |
| 2019 | 34.8449 |
| 2018 | 36.3483 |
| 2017 | 37.807 |
| 2016 | 39.0688 |
| 2015 | 40.1599 |
| 2014 | 41.1796 |
| 2013 | 42.1154 |
| 2012 | 43.0775 |
| 2011 | 44.1792 |
| 2010 | 45.4449 |
| 2009 | 46.8517 |
| 2008 | 48.3928 |
| 2007 | 50.0463 |
| 2006 | 51.7355 |
| 2005 | 53.6347 |
| 2004 | 56.0808 |
| 2003 | 58.7901 |
| 2002 | 61.3275 |
| 2001 | 63.6574 |
| 2000 | 65.7319 |
| 1999 | 67.5087 |
| 1998 | 69.1397 |
| 1997 | 70.6745 |
| 1996 | 72.0003 |
| 1995 | 73.1262 |
| 1994 | 74.0739 |
| 1993 | 74.8412 |
| 1992 | 75.4618 |
| 1991 | 75.8753 |
| 1990 | 76.1002 |
| 1989 | 76.284 |
| 1988 | 76.4739 |
| 1987 | 76.5927 |
| 1986 | 76.6435 |
| 1985 | 76.6287 |
| 1984 | 76.5528 |
| 1983 | 76.4106 |
| 1982 | 76.1954 |
| 1981 | 75.9212 |
| 1980 | 75.6201 |
| 1979 | 75.2982 |
| 1978 | 74.9634 |
| 1977 | 74.6033 |
| 1976 | 74.2035 |
| 1975 | 73.7767 |
| 1974 | 73.3334 |
| 1973 | 72.8745 |
| 1972 | 72.4036 |
| 1971 | 71.9363 |
| 1970 | 71.4735 |
| 1969 | 71.0158 |
| 1968 | 70.5558 |
| 1967 | 70.0766 |
| 1966 | 69.583 |
| 1965 | 69.0924 |
| 1964 | 68.9262 |
| 1963 | 69.0937 |
| 1962 | 69.5723 |
| 1961 | 70.3426 |
| 1960 | 71.0925 |