| 年份 | 圭亚那 |
|---|---|
| 2023 | - |
| 2022 | 4.37065 |
| 2021 | 4.37549 |
| 2020 | 4.37779 |
| 2019 | 4.31507 |
| 2018 | 4.29645 |
| 2017 | 4.29836 |
| 2016 | 4.19888 |
| 2015 | 4.07499 |
| 2014 | 3.93415 |
| 2013 | 3.78701 |
| 2012 | 3.64695 |
| 2011 | 3.51469 |
| 2010 | 3.39531 |
| 2009 | 3.29596 |
| 2008 | 3.20976 |
| 2007 | 3.12447 |
| 2006 | 3.02707 |
| 2005 | 2.91131 |
| 2004 | 2.77817 |
| 2003 | 2.63732 |
| 2002 | 2.50965 |
| 2001 | 2.40877 |
| 2000 | 2.33808 |
| 1999 | 2.29857 |
| 1998 | 2.2841 |
| 1997 | 2.2847 |
| 1996 | 2.28981 |
| 1995 | 2.2909 |
| 1994 | 2.2843 |
| 1993 | 2.27306 |
| 1992 | 2.26287 |
| 1991 | 2.2582 |
| 1990 | 2.26228 |
| 1989 | 2.27711 |
| 1988 | 2.30166 |
| 1987 | 2.33439 |
| 1986 | 2.3734 |
| 1985 | 2.41437 |
| 1984 | 2.45081 |
| 1983 | 2.47764 |
| 1982 | 2.49235 |
| 1981 | 2.49057 |
| 1980 | 2.47344 |
| 1979 | 2.44271 |
| 1978 | 2.40169 |
| 1977 | 2.35994 |
| 1976 | 2.32966 |
| 1975 | 2.32472 |
| 1974 | 2.35401 |
| 1973 | 2.41457 |
| 1972 | 2.49153 |
| 1971 | 2.56728 |
| 1970 | 2.62413 |
| 1969 | 2.64691 |
| 1968 | 2.63486 |
| 1967 | 2.60108 |
| 1966 | 2.56236 |
| 1965 | 2.53737 |
| 1964 | 2.54094 |
| 1963 | 2.57559 |
| 1962 | 2.63209 |
| 1961 | 2.69807 |
| 1960 | 2.74964 |