| 年份 | 不丹  | 
                                                            
|---|---|
| 2023 | - | 
| 2022 | - | 
| 2021 | 7.62802 | 
| 2020 | 5.28737 | 
| 2019 | 3.108 | 
| 2018 | 1.15086 | 
| 2017 | 5.10492 | 
| 2016 | 4.38341 | 
| 2015 | 3.55707 | 
| 2014 | 6.92096 | 
| 2013 | 5.86984 | 
| 2012 | 9.17993 | 
| 2011 | 8.5103 | 
| 2010 | 5.85431 | 
| 2009 | 4.75629 | 
| 2008 | 5.51047 | 
| 2007 | 2.95344 | 
| 2006 | 5.41986 | 
| 2005 | 5.90278 | 
| 2004 | 3.70494 | 
| 2003 | 3.06615 | 
| 2002 | 4.75522 | 
| 2001 | 5.35878 | 
| 2000 | 7.3502 | 
| 1999 | 6.17026 | 
| 1998 | 10.6963 | 
| 1997 | 12.9069 | 
| 1996 | 8.11263 | 
| 1995 | 8.28438 | 
| 1994 | 12.3413 | 
| 1993 | 8.51345 | 
| 1992 | 8.92329 | 
| 1991 | 8.94128 | 
| 1990 | 6.20535 | 
| 1989 | - | 
| 1988 | - | 
| 1987 | - | 
| 1986 | - | 
| 1985 | - | 
| 1984 | - | 
| 1983 | - | 
| 1982 | - | 
| 1981 | - | 
| 1980 | - | 
| 1979 | - | 
| 1978 | - | 
| 1977 | - | 
| 1976 | - | 
| 1975 | - | 
| 1974 | - | 
| 1973 | - | 
| 1972 | - | 
| 1971 | - | 
| 1970 | - | 
| 1969 | - | 
| 1968 | - | 
| 1967 | - | 
| 1966 | - | 
| 1965 | - | 
| 1964 | - | 
| 1963 | - | 
| 1962 | - | 
| 1961 | - | 
| 1960 | - |