| 年份 | 圭亚那 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 27.7 |
| 2020 | 28.5 |
| 2019 | 29.4 |
| 2018 | 30.3 |
| 2017 | 31.3 |
| 2016 | 32.2 |
| 2015 | 33.1 |
| 2014 | 34.1 |
| 2013 | 35 |
| 2012 | 35.9 |
| 2011 | 36.6 |
| 2010 | 37.4 |
| 2009 | 38.1 |
| 2008 | 38.8 |
| 2007 | 39.7 |
| 2006 | 40.5 |
| 2005 | 41.4 |
| 2004 | 42.3 |
| 2003 | 43.3 |
| 2002 | 44.3 |
| 2001 | 45.4 |
| 2000 | 46.6 |
| 1999 | 47.9 |
| 1998 | 49.1 |
| 1997 | 50.4 |
| 1996 | 51.7 |
| 1995 | 53.1 |
| 1994 | 54.6 |
| 1993 | 56.1 |
| 1992 | 57.7 |
| 1991 | 59.3 |
| 1990 | 60.9 |
| 1989 | 62.3 |
| 1988 | 63.7 |
| 1987 | 64.8 |
| 1986 | 65.9 |
| 1985 | 66.7 |
| 1984 | 67.6 |
| 1983 | 68.3 |
| 1982 | 69 |
| 1981 | 69.6 |
| 1980 | 70.3 |
| 1979 | 70.9 |
| 1978 | 71.4 |
| 1977 | 72 |
| 1976 | 72.4 |
| 1975 | 72.8 |
| 1974 | 73 |
| 1973 | 73.2 |
| 1972 | 73.4 |
| 1971 | 73.5 |
| 1970 | 73.8 |
| 1969 | 74.2 |
| 1968 | 74.9 |
| 1967 | 75.6 |
| 1966 | 76.8 |
| 1965 | 78.2 |
| 1964 | 79.9 |
| 1963 | 82.2 |
| 1962 | 85 |
| 1961 | 88.2 |
| 1960 | 92 |