| 年份 | 毛里塔尼亚 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 4.398 |
| 2020 | 4.455 |
| 2019 | 4.521 |
| 2018 | 4.607 |
| 2017 | 4.664 |
| 2016 | 4.741 |
| 2015 | 4.813 |
| 2014 | 4.886 |
| 2013 | 4.942 |
| 2012 | 4.986 |
| 2011 | 5.028 |
| 2010 | 5.043 |
| 2009 | 5.084 |
| 2008 | 5.153 |
| 2007 | 5.153 |
| 2006 | 5.186 |
| 2005 | 5.19 |
| 2004 | 5.192 |
| 2003 | 5.229 |
| 2002 | 5.287 |
| 2001 | 5.38 |
| 2000 | 5.459 |
| 1999 | 5.538 |
| 1998 | 5.574 |
| 1997 | 5.66 |
| 1996 | 5.713 |
| 1995 | 5.851 |
| 1994 | 5.924 |
| 1993 | 6.044 |
| 1992 | 6.044 |
| 1991 | 6.044 |
| 1990 | 6.056 |
| 1989 | 6.076 |
| 1988 | 6.106 |
| 1987 | 6.164 |
| 1986 | 6.247 |
| 1985 | 6.338 |
| 1984 | 6.409 |
| 1983 | 6.479 |
| 1982 | 6.529 |
| 1981 | 6.576 |
| 1980 | 6.615 |
| 1979 | 6.648 |
| 1978 | 6.665 |
| 1977 | 6.676 |
| 1976 | 6.673 |
| 1975 | 6.682 |
| 1974 | 6.7 |
| 1973 | 6.695 |
| 1972 | 6.699 |
| 1971 | 6.687 |
| 1970 | 6.691 |
| 1969 | 6.689 |
| 1968 | 6.676 |
| 1967 | 6.673 |
| 1966 | 6.642 |
| 1965 | 6.589 |
| 1964 | 6.527 |
| 1963 | 6.484 |
| 1962 | 6.434 |
| 1961 | 6.401 |
| 1960 | 6.354 |