| 年份 | 毛里塔尼亚 |
|---|---|
| 2023 | - |
| 2022 | 1.8336 |
| 2021 | 1.83589 |
| 2020 | 1.83628 |
| 2019 | 1.83152 |
| 2018 | 1.82249 |
| 2017 | 1.81357 |
| 2016 | 1.80512 |
| 2015 | 1.79781 |
| 2014 | 1.7904 |
| 2013 | 1.78524 |
| 2012 | 1.7711 |
| 2011 | 1.74772 |
| 2010 | 1.73087 |
| 2009 | 1.7215 |
| 2008 | 1.70736 |
| 2007 | 1.69383 |
| 2006 | 1.68944 |
| 2005 | 1.68409 |
| 2004 | 1.67471 |
| 2003 | 1.66276 |
| 2002 | 1.65413 |
| 2001 | 1.64621 |
| 2000 | 1.63789 |
| 1999 | 1.63684 |
| 1998 | 1.64127 |
| 1997 | 1.6433 |
| 1996 | 1.64389 |
| 1995 | 1.64508 |
| 1994 | 1.64985 |
| 1993 | 1.65659 |
| 1992 | 1.66577 |
| 1991 | 1.67426 |
| 1990 | 1.67918 |
| 1989 | 1.68271 |
| 1988 | 1.68569 |
| 1987 | 1.68936 |
| 1986 | 1.69309 |
| 1985 | 1.69759 |
| 1984 | 1.70191 |
| 1983 | 1.70593 |
| 1982 | 1.71069 |
| 1981 | 1.71549 |
| 1980 | 1.71981 |
| 1979 | 1.72432 |
| 1978 | 1.7291 |
| 1977 | 1.73365 |
| 1976 | 1.73845 |
| 1975 | 1.74316 |
| 1974 | 1.74727 |
| 1973 | 1.75147 |
| 1972 | 1.75574 |
| 1971 | 1.75945 |
| 1970 | 1.76266 |
| 1969 | 1.76535 |
| 1968 | 1.76671 |
| 1967 | 1.76748 |
| 1966 | 1.76829 |
| 1965 | 1.76877 |
| 1964 | 1.76863 |
| 1963 | 1.76769 |
| 1962 | 1.76581 |
| 1961 | 1.76184 |
| 1960 | 1.75399 |