| 年份 | 不丹 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | - |
| 2020 | 12.2846 |
| 2019 | 14.4976 |
| 2018 | 15.804 |
| 2017 | 11.8592 |
| 2016 | 12.9795 |
| 2015 | 13.262 |
| 2014 | 13.6987 |
| 2013 | 14.7227 |
| 2012 | 15.0542 |
| 2011 | 13.8352 |
| 2010 | 13.4615 |
| 2009 | 9.46562 |
| 2008 | 8.62515 |
| 2007 | 7.69829 |
| 2006 | 9.26571 |
| 2005 | 8.57627 |
| 2004 | 7.9096 |
| 2003 | 9.64435 |
| 2002 | 9.53685 |
| 2001 | 8.80299 |
| 2000 | 10.3646 |
| 1999 | 7.36251 |
| 1998 | 8.31145 |
| 1997 | 6.79327 |
| 1996 | 7.8525 |
| 1995 | 6.89825 |
| 1994 | 6.19494 |
| 1993 | 6.48847 |
| 1992 | 5.27111 |
| 1991 | 5.15291 |
| 1990 | 4.60006 |
| 1989 | 5.41139 |
| 1988 | 6.22494 |
| 1987 | - |
| 1986 | 7.11199 |
| 1985 | 6.72879 |
| 1984 | 7.60358 |
| 1983 | 6.6349 |
| 1982 | 5.72036 |
| 1981 | - |
| 1980 | - |
| 1979 | - |
| 1978 | - |
| 1977 | - |
| 1976 | - |
| 1975 | - |
| 1974 | - |
| 1973 | - |
| 1972 | - |
| 1971 | - |
| 1970 | - |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |