| 年份 | 圭亚那 |
|---|---|
| 2023 | - |
| 2022 | 8.63563 |
| 2021 | 8.74817 |
| 2020 | 8.91475 |
| 2019 | 9.17333 |
| 2018 | 9.42752 |
| 2017 | 9.65382 |
| 2016 | 9.90708 |
| 2015 | 10.1337 |
| 2014 | 10.3276 |
| 2013 | 10.4847 |
| 2012 | 10.6023 |
| 2011 | 10.6795 |
| 2010 | 10.6587 |
| 2009 | 10.5199 |
| 2008 | 10.309 |
| 2007 | 10.0437 |
| 2006 | 9.74371 |
| 2005 | 9.48122 |
| 2004 | 9.29887 |
| 2003 | 9.18114 |
| 2002 | 9.14877 |
| 2001 | 9.20869 |
| 2000 | 9.34539 |
| 1999 | 9.54235 |
| 1998 | 9.77869 |
| 1997 | 10.0313 |
| 1996 | 10.2805 |
| 1995 | 10.5147 |
| 1994 | 10.7218 |
| 1993 | 10.8999 |
| 1992 | 11.0592 |
| 1991 | 11.2128 |
| 1990 | 11.3402 |
| 1989 | 11.4481 |
| 1988 | 11.5682 |
| 1987 | 11.7013 |
| 1986 | 11.8533 |
| 1985 | 12.0196 |
| 1984 | 12.1867 |
| 1983 | 12.3402 |
| 1982 | 12.4644 |
| 1981 | 12.5452 |
| 1980 | 12.5824 |
| 1979 | 12.5693 |
| 1978 | 12.5042 |
| 1977 | 12.387 |
| 1976 | 12.2256 |
| 1975 | 12.0486 |
| 1974 | 11.8714 |
| 1973 | 11.6919 |
| 1972 | 11.5153 |
| 1971 | 11.339 |
| 1970 | 11.1735 |
| 1969 | 11.0154 |
| 1968 | 10.8362 |
| 1967 | 10.641 |
| 1966 | 10.4367 |
| 1965 | 10.2273 |
| 1964 | 10.0135 |
| 1963 | 9.80484 |
| 1962 | 9.6166 |
| 1961 | 9.45257 |
| 1960 | 9.31643 |