| 年份 | 圭亚那 |
|---|---|
| 2023 | - |
| 2022 | 9.64002 |
| 2021 | 9.46606 |
| 2020 | 9.29154 |
| 2019 | 8.94569 |
| 2018 | 8.75238 |
| 2017 | 8.66848 |
| 2016 | 8.41269 |
| 2015 | 8.1707 |
| 2014 | 7.94199 |
| 2013 | 7.73217 |
| 2012 | 7.54545 |
| 2011 | 7.35854 |
| 2010 | 7.18211 |
| 2009 | 7.04298 |
| 2008 | 6.93016 |
| 2007 | 6.83373 |
| 2006 | 6.75099 |
| 2005 | 6.67259 |
| 2004 | 6.58793 |
| 2003 | 6.49999 |
| 2002 | 6.43729 |
| 2001 | 6.39738 |
| 2000 | 6.35835 |
| 1999 | 6.33075 |
| 1998 | 6.31725 |
| 1997 | 6.32567 |
| 1996 | 6.35973 |
| 1995 | 6.41299 |
| 1994 | 6.47436 |
| 1993 | 6.53699 |
| 1992 | 6.60206 |
| 1991 | 6.64265 |
| 1990 | 6.64499 |
| 1989 | 6.61906 |
| 1988 | 6.57572 |
| 1987 | 6.53134 |
| 1986 | 6.50158 |
| 1985 | 6.49675 |
| 1984 | 6.519 |
| 1983 | 6.56435 |
| 1982 | 6.62461 |
| 1981 | 6.69047 |
| 1980 | 6.74775 |
| 1979 | 6.79376 |
| 1978 | 6.83503 |
| 1977 | 6.8722 |
| 1976 | 6.90767 |
| 1975 | 6.94714 |
| 1974 | 6.99419 |
| 1973 | 7.04678 |
| 1972 | 7.09887 |
| 1971 | 7.14247 |
| 1970 | 7.13214 |
| 1969 | 7.06839 |
| 1968 | 6.99237 |
| 1967 | 6.90825 |
| 1966 | 6.82907 |
| 1965 | 6.76601 |
| 1964 | 6.72838 |
| 1963 | 6.71843 |
| 1962 | 6.72797 |
| 1961 | 6.75101 |
| 1960 | 6.70987 |