| 年份 | 毛里塔尼亚 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 0.670017 |
| 2020 | 0.513765 |
| 2019 | 0.784232 |
| 2018 | 1.11226 |
| 2017 | 1.25602 |
| 2016 | 0.920132 |
| 2015 | 1.02487 |
| 2014 | 1.49428 |
| 2013 | 1.63002 |
| 2012 | 2.41584 |
| 2011 | 5.02486 |
| 2010 | 4.56933 |
| 2009 | 4.0987 |
| 2008 | 6.44044 |
| 2007 | 2.26138 |
| 2006 | 3.53662 |
| 2005 | 4.08895 |
| 2004 | 2.35598 |
| 2003 | 2.10232 |
| 2002 | 2.73072 |
| 2001 | 2.58932 |
| 2000 | 2.03141 |
| 1999 | 1.93287 |
| 1998 | 2.56559 |
| 1997 | 2.43573 |
| 1996 | 2.30399 |
| 1995 | 2.01178 |
| 1994 | 1.70892 |
| 1993 | 2.40635 |
| 1992 | 2.48664 |
| 1991 | 2.94998 |
| 1990 | 4.47966 |
| 1989 | 3.99753 |
| 1988 | 2.57454 |
| 1987 | 3.74195 |
| 1986 | 5.64336 |
| 1985 | 9.07545 |
| 1984 | 9.86332 |
| 1983 | 11.1895 |
| 1982 | 10.5723 |
| 1981 | 9.01439 |
| 1980 | 7.84601 |
| 1979 | - |
| 1978 | - |
| 1977 | - |
| 1976 | - |
| 1975 | - |
| 1974 | - |
| 1973 | - |
| 1972 | - |
| 1971 | - |
| 1970 | - |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |