| 年份 | 加蓬 |
|---|---|
| 2023 | - |
| 2022 | 6.49671 |
| 2021 | 6.53132 |
| 2020 | 6.55448 |
| 2019 | 6.5533 |
| 2018 | 6.54646 |
| 2017 | 6.54788 |
| 2016 | 6.56108 |
| 2015 | 6.59046 |
| 2014 | 6.64651 |
| 2013 | 6.73623 |
| 2012 | 6.84083 |
| 2011 | 6.95215 |
| 2010 | 7.08007 |
| 2009 | 7.22561 |
| 2008 | 7.38815 |
| 2007 | 7.56456 |
| 2006 | 7.75124 |
| 2005 | 7.94628 |
| 2004 | 8.1435 |
| 2003 | 8.33699 |
| 2002 | 8.52899 |
| 2001 | 8.72425 |
| 2000 | 8.92316 |
| 1999 | 9.12426 |
| 1998 | 9.32611 |
| 1997 | 9.52894 |
| 1996 | 9.73316 |
| 1995 | 9.93607 |
| 1994 | 10.1359 |
| 1993 | 10.3316 |
| 1992 | 10.5252 |
| 1991 | 10.7156 |
| 1990 | 10.9014 |
| 1989 | 11.0821 |
| 1988 | 11.2581 |
| 1987 | 11.429 |
| 1986 | 11.5937 |
| 1985 | 11.7521 |
| 1984 | 11.9044 |
| 1983 | 12.0495 |
| 1982 | 12.1888 |
| 1981 | 12.3199 |
| 1980 | 12.4397 |
| 1979 | 12.5485 |
| 1978 | 12.648 |
| 1977 | 12.74 |
| 1976 | 12.8203 |
| 1975 | 12.8917 |
| 1974 | 12.953 |
| 1973 | 13.0024 |
| 1972 | 13.0391 |
| 1971 | 13.0713 |
| 1970 | 13.1109 |
| 1969 | 13.1609 |
| 1968 | 13.1767 |
| 1967 | 13.1475 |
| 1966 | 13.1104 |
| 1965 | 13.0657 |
| 1964 | 13.0077 |
| 1963 | 12.9328 |
| 1962 | 12.8519 |
| 1961 | 12.7663 |
| 1960 | 12.6694 |