| 年份 | 圭亚那 |
|---|---|
| 2023 | - |
| 2022 | 6.03208 |
| 2021 | 6.02594 |
| 2020 | 6.07386 |
| 2019 | 6.19069 |
| 2018 | 6.30542 |
| 2017 | 6.41511 |
| 2016 | 6.55726 |
| 2015 | 6.67888 |
| 2014 | 6.7687 |
| 2013 | 6.82674 |
| 2012 | 6.86019 |
| 2011 | 6.88051 |
| 2010 | 6.89937 |
| 2009 | 6.92467 |
| 2008 | 6.95828 |
| 2007 | 6.99218 |
| 2006 | 7.01944 |
| 2005 | 7.03279 |
| 2004 | 7.03085 |
| 2003 | 7.0173 |
| 2002 | 6.99942 |
| 2001 | 6.97861 |
| 2000 | 6.95206 |
| 1999 | 6.91714 |
| 1998 | 6.86976 |
| 1997 | 6.80552 |
| 1996 | 6.71884 |
| 1995 | 6.60963 |
| 1994 | 6.48301 |
| 1993 | 6.34677 |
| 1992 | 6.21159 |
| 1991 | 6.06308 |
| 1990 | 5.92175 |
| 1989 | 5.79661 |
| 1988 | 5.64949 |
| 1987 | 5.47549 |
| 1986 | 5.27879 |
| 1985 | 5.06983 |
| 1984 | 4.86215 |
| 1983 | 4.67243 |
| 1982 | 4.51474 |
| 1981 | 4.39424 |
| 1980 | 4.31847 |
| 1979 | 4.28029 |
| 1978 | 4.26376 |
| 1977 | 4.26334 |
| 1976 | 4.27498 |
| 1975 | 4.29694 |
| 1974 | 4.32946 |
| 1973 | 4.36995 |
| 1972 | 4.41248 |
| 1971 | 4.45252 |
| 1970 | 4.50091 |
| 1969 | 4.55579 |
| 1968 | 4.60425 |
| 1967 | 4.65164 |
| 1966 | 4.70192 |
| 1965 | 4.75846 |
| 1964 | 4.82437 |
| 1963 | 4.89664 |
| 1962 | 4.96729 |
| 1961 | 5.02709 |
| 1960 | 5.0775 |