| 年份 | 不丹 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 24.2 |
| 2020 | 25 |
| 2019 | 25.9 |
| 2018 | 26.9 |
| 2017 | 27.8 |
| 2016 | 29 |
| 2015 | 30.3 |
| 2014 | 31.6 |
| 2013 | 33.1 |
| 2012 | 34.8 |
| 2011 | 36.7 |
| 2010 | 38.9 |
| 2009 | 41.4 |
| 2008 | 44.1 |
| 2007 | 47 |
| 2006 | 50.2 |
| 2005 | 53.6 |
| 2004 | 57.1 |
| 2003 | 60.9 |
| 2002 | 64.8 |
| 2001 | 68.8 |
| 2000 | 73 |
| 1999 | 77.4 |
| 1998 | 81.8 |
| 1997 | 86.4 |
| 1996 | 91.1 |
| 1995 | 95.9 |
| 1994 | 100.8 |
| 1993 | 105.9 |
| 1992 | 111.1 |
| 1991 | 116.4 |
| 1990 | 122 |
| 1989 | 127.7 |
| 1988 | 133.7 |
| 1987 | 139.8 |
| 1986 | 146.2 |
| 1985 | 152.8 |
| 1984 | 159.6 |
| 1983 | 166.4 |
| 1982 | 173.5 |
| 1981 | 180.5 |
| 1980 | 188 |
| 1979 | 195.5 |
| 1978 | 203 |
| 1977 | 210.4 |
| 1976 | 218.2 |
| 1975 | 225.7 |
| 1974 | 233.2 |
| 1973 | 241.1 |
| 1972 | 249.1 |
| 1971 | 256.9 |
| 1970 | 265.1 |
| 1969 | 273.5 |
| 1968 | 282.2 |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |