| 年份 | 毛里塔尼亚 |
|---|---|
| 2023 | - |
| 2022 | 0.774292 |
| 2021 | 0.73325 |
| 2020 | 0.765088 |
| 2019 | 0.79585 |
| 2018 | 0.812272 |
| 2017 | 0.822829 |
| 2016 | 0.841519 |
| 2015 | 0.850751 |
| 2014 | 0.856892 |
| 2013 | 1.12475 |
| 2012 | 1.38231 |
| 2011 | 1.3095 |
| 2010 | 1.1984 |
| 2009 | 1.08402 |
| 2008 | 0.886514 |
| 2007 | 0.741453 |
| 2006 | 0.716365 |
| 2005 | 0.695891 |
| 2004 | 0.687045 |
| 2003 | 0.710711 |
| 2002 | 0.727476 |
| 2001 | 1.59753 |
| 2000 | 2.99802 |
| 1999 | 2.91109 |
| 1998 | 2.82876 |
| 1997 | 2.45793 |
| 1996 | 2.21647 |
| 1995 | 2.97769 |
| 1994 | 3.63402 |
| 1993 | 4.28642 |
| 1992 | 4.05941 |
| 1991 | 3.16457 |
| 1990 | 2.77915 |
| 1989 | 2.75175 |
| 1988 | 0.843346 |
| 1987 | 0.23714 |
| 1986 | 0.364827 |
| 1985 | 0.503832 |
| 1984 | 0.624182 |
| 1983 | 0.744629 |
| 1982 | 0.853724 |
| 1981 | 0.941277 |
| 1980 | 1.00393 |
| 1979 | 1.08799 |
| 1978 | 1.17678 |
| 1977 | 1.16491 |
| 1976 | 1.18212 |
| 1975 | 1.30461 |
| 1974 | 1.41428 |
| 1973 | 1.5255 |
| 1972 | 1.62629 |
| 1971 | 1.73616 |
| 1970 | 1.84309 |
| 1969 | 1.9339 |
| 1968 | 1.99977 |
| 1967 | 2.05547 |
| 1966 | 2.09089 |
| 1965 | 2.10837 |
| 1964 | 2.11676 |
| 1963 | 2.12314 |
| 1962 | 2.13232 |
| 1961 | 2.12972 |
| 1960 | - |