| 年份 | 加蓬 |
|---|---|
| 2023 | - |
| 2022 | 12.7232 |
| 2021 | 12.9457 |
| 2020 | 13.178 |
| 2019 | 13.4048 |
| 2018 | 13.6087 |
| 2017 | 13.7827 |
| 2016 | 13.9373 |
| 2015 | 14.0713 |
| 2014 | 14.1718 |
| 2013 | 14.2376 |
| 2012 | 14.271 |
| 2011 | 14.2721 |
| 2010 | 14.2594 |
| 2009 | 14.263 |
| 2008 | 14.2951 |
| 2007 | 14.3555 |
| 2006 | 14.4339 |
| 2005 | 14.5219 |
| 2004 | 14.6079 |
| 2003 | 14.6938 |
| 2002 | 14.784 |
| 2001 | 14.877 |
| 2000 | 14.9866 |
| 1999 | 15.1386 |
| 1998 | 15.3399 |
| 1997 | 15.5711 |
| 1996 | 15.8175 |
| 1995 | 16.0632 |
| 1994 | 16.2838 |
| 1993 | 16.4707 |
| 1992 | 16.6294 |
| 1991 | 16.7581 |
| 1990 | 16.8567 |
| 1989 | 16.9282 |
| 1988 | 16.9709 |
| 1987 | 16.9864 |
| 1986 | 16.9862 |
| 1985 | 16.9624 |
| 1984 | 16.8988 |
| 1983 | 16.803 |
| 1982 | 16.6819 |
| 1981 | 16.5339 |
| 1980 | 16.3693 |
| 1979 | 16.2011 |
| 1978 | 16.029 |
| 1977 | 15.8594 |
| 1976 | 15.6898 |
| 1975 | 15.5118 |
| 1974 | 15.3257 |
| 1973 | 15.1303 |
| 1972 | 14.9279 |
| 1971 | 14.7349 |
| 1970 | 14.5645 |
| 1969 | 14.4166 |
| 1968 | 14.2624 |
| 1967 | 14.0928 |
| 1966 | 13.9192 |
| 1965 | 13.7395 |
| 1964 | 13.555 |
| 1963 | 13.36 |
| 1962 | 13.1539 |
| 1961 | 12.9479 |
| 1960 | 12.7533 |