| 年份 | 圭亚那 |
|---|---|
| 2023 | - |
| 2022 | 4.62273 |
| 2021 | 4.57169 |
| 2020 | 4.52858 |
| 2019 | 4.45863 |
| 2018 | 4.41869 |
| 2017 | 4.38944 |
| 2016 | 4.29582 |
| 2015 | 4.18403 |
| 2014 | 4.05698 |
| 2013 | 3.92006 |
| 2012 | 3.78086 |
| 2011 | 3.64121 |
| 2010 | 3.50687 |
| 2009 | 3.38456 |
| 2008 | 3.2708 |
| 2007 | 3.15983 |
| 2006 | 3.04605 |
| 2005 | 2.92577 |
| 2004 | 2.8017 |
| 2003 | 2.68056 |
| 2002 | 2.57142 |
| 2001 | 2.47956 |
| 2000 | 2.40726 |
| 1999 | 2.35588 |
| 1998 | 2.32246 |
| 1997 | 2.30451 |
| 1996 | 2.29988 |
| 1995 | 2.30637 |
| 1994 | 2.3186 |
| 1993 | 2.32913 |
| 1992 | 2.33187 |
| 1991 | 2.3229 |
| 1990 | 2.30604 |
| 1989 | 2.28795 |
| 1988 | 2.27503 |
| 1987 | 2.27486 |
| 1986 | 2.29116 |
| 1985 | 2.32091 |
| 1984 | 2.35381 |
| 1983 | 2.37751 |
| 1982 | 2.38357 |
| 1981 | 2.36999 |
| 1980 | 2.35283 |
| 1979 | 2.33235 |
| 1978 | 2.29828 |
| 1977 | 2.26009 |
| 1976 | 2.22791 |
| 1975 | 2.21381 |
| 1974 | 2.22674 |
| 1973 | 2.263 |
| 1972 | 2.31152 |
| 1971 | 2.36159 |
| 1970 | 2.40131 |
| 1969 | 2.41832 |
| 1968 | 2.41046 |
| 1967 | 2.38855 |
| 1966 | 2.36471 |
| 1965 | 2.35209 |
| 1964 | 2.36193 |
| 1963 | 2.39553 |
| 1962 | 2.44629 |
| 1961 | 2.50405 |
| 1960 | 2.5527 |