| 年份 | 圭亚那 |
|---|---|
| 2023 | - |
| 2022 | 8.88821 |
| 2021 | 9.1542 |
| 2020 | 9.35668 |
| 2019 | 9.60715 |
| 2018 | 9.68098 |
| 2017 | 9.61779 |
| 2016 | 9.68273 |
| 2015 | 9.66381 |
| 2014 | 9.54327 |
| 2013 | 9.36129 |
| 2012 | 9.09992 |
| 2011 | 8.78065 |
| 2010 | 8.50731 |
| 2009 | 8.31466 |
| 2008 | 8.18546 |
| 2007 | 8.12696 |
| 2006 | 8.14047 |
| 2005 | 8.21996 |
| 2004 | 8.35035 |
| 2003 | 8.51097 |
| 2002 | 8.70884 |
| 2001 | 8.93149 |
| 2000 | 9.14279 |
| 1999 | 9.32928 |
| 1998 | 9.49058 |
| 1997 | 9.63618 |
| 1996 | 9.77237 |
| 1995 | 9.90395 |
| 1994 | 10.0391 |
| 1993 | 10.1781 |
| 1992 | 10.3112 |
| 1991 | 10.4394 |
| 1990 | 10.5481 |
| 1989 | 10.6358 |
| 1988 | 10.7163 |
| 1987 | 10.7796 |
| 1986 | 10.816 |
| 1985 | 10.8179 |
| 1984 | 10.777 |
| 1983 | 10.6916 |
| 1982 | 10.5547 |
| 1981 | 10.3666 |
| 1980 | 10.1838 |
| 1979 | 10.0174 |
| 1978 | 9.82883 |
| 1977 | 9.63076 |
| 1976 | 9.43105 |
| 1975 | 9.21407 |
| 1974 | 8.98178 |
| 1973 | 8.74303 |
| 1972 | 8.50197 |
| 1971 | 8.26794 |
| 1970 | 8.0793 |
| 1969 | 7.93684 |
| 1968 | 7.81456 |
| 1967 | 7.71855 |
| 1966 | 7.64414 |
| 1965 | 7.58817 |
| 1964 | 7.54664 |
| 1963 | 7.51713 |
| 1962 | 7.50331 |
| 1961 | 7.50656 |
| 1960 | 7.52645 |