| 年份 | 圭亚那 |
|---|---|
| 2023 | - |
| 2022 | 3.52781 |
| 2021 | 3.4753 |
| 2020 | 3.40075 |
| 2019 | 3.25912 |
| 2018 | 3.15693 |
| 2017 | 3.08761 |
| 2016 | 2.97509 |
| 2015 | 2.88291 |
| 2014 | 2.80982 |
| 2013 | 2.75208 |
| 2012 | 2.69607 |
| 2011 | 2.61578 |
| 2010 | 2.50642 |
| 2009 | 2.38056 |
| 2008 | 2.24666 |
| 2007 | 2.1183 |
| 2006 | 2.01038 |
| 2005 | 1.93243 |
| 2004 | 1.88517 |
| 2003 | 1.86032 |
| 2002 | 1.85222 |
| 2001 | 1.85171 |
| 2000 | 1.84626 |
| 1999 | 1.83356 |
| 1998 | 1.81706 |
| 1997 | 1.80169 |
| 1996 | 1.79117 |
| 1995 | 1.78826 |
| 1994 | 1.79424 |
| 1993 | 1.80918 |
| 1992 | 1.83159 |
| 1991 | 1.86288 |
| 1990 | 1.90806 |
| 1989 | 1.95787 |
| 1988 | 1.99833 |
| 1987 | 2.02533 |
| 1986 | 2.03447 |
| 1985 | 2.02202 |
| 1984 | 1.98905 |
| 1983 | 1.9415 |
| 1982 | 1.88817 |
| 1981 | 1.84169 |
| 1980 | 1.81997 |
| 1979 | 1.83223 |
| 1978 | 1.87239 |
| 1977 | 1.92769 |
| 1976 | 1.98358 |
| 1975 | 2.02496 |
| 1974 | 2.03926 |
| 1973 | 2.02708 |
| 1972 | 1.99952 |
| 1971 | 1.96868 |
| 1970 | 1.94127 |
| 1969 | 1.92774 |
| 1968 | 1.93618 |
| 1967 | 1.96029 |
| 1966 | 1.99053 |
| 1965 | 2.0175 |
| 1964 | 2.03335 |
| 1963 | 2.03431 |
| 1962 | 2.02284 |
| 1961 | 2.00384 |
| 1960 | 1.9756 |