| 年份 | 不丹 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | - |
| 2020 | - |
| 2019 | - |
| 2018 | - |
| 2017 | - |
| 2016 | - |
| 2015 | - |
| 2014 | - |
| 2013 | - |
| 2012 | 0.218328 |
| 2011 | 0.299775 |
| 2010 | 0.269642 |
| 2009 | 0.125747 |
| 2008 | 0.669018 |
| 2007 | 0.282365 |
| 2006 | 0.25424 |
| 2005 | 0.224305 |
| 2004 | 0.11218 |
| 2003 | 0.108201 |
| 2002 | 0.147715 |
| 2001 | 0.227225 |
| 2000 | 0.0933287 |
| 1999 | 0.0735627 |
| 1998 | 0.104992 |
| 1997 | 0.143034 |
| 1996 | 0.231359 |
| 1995 | 0.288694 |
| 1994 | 0.190908 |
| 1993 | 0.143847 |
| 1992 | 0.24236 |
| 1991 | 0.0097947 |
| 1990 | 0.00839937 |
| 1989 | 0.00823708 |
| 1988 | 0.00651415 |
| 1987 | 0.00501962 |
| 1986 | 0.00425737 |
| 1985 | 0.00424789 |
| 1984 | 0.00304616 |
| 1983 | 0.00198158 |
| 1982 | 0.00184646 |
| 1981 | 0.00162153 |
| 1980 | 0.000633269 |
| 1979 | - |
| 1978 | - |
| 1977 | - |
| 1976 | - |
| 1975 | - |
| 1974 | - |
| 1973 | - |
| 1972 | - |
| 1971 | - |
| 1970 | - |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |