| 年份 | 毛里塔尼亚  | 
                                                            
|---|---|
| 2023 | - | 
| 2022 | 4.19599 | 
| 2021 | 4.15405 | 
| 2020 | 4.12276 | 
| 2019 | 4.10199 | 
| 2018 | 4.09178 | 
| 2017 | 4.09068 | 
| 2016 | 4.0965 | 
| 2015 | 4.10636 | 
| 2014 | 4.11657 | 
| 2013 | 4.12253 | 
| 2012 | 4.15463 | 
| 2011 | 4.21403 | 
| 2010 | 4.26428 | 
| 2009 | 4.29904 | 
| 2008 | 4.31228 | 
| 2007 | 4.29774 | 
| 2006 | 4.26454 | 
| 2005 | 4.22596 | 
| 2004 | 4.18391 | 
| 2003 | 4.14026 | 
| 2002 | 4.09586 | 
| 2001 | 4.05299 | 
| 2000 | 4.00336 | 
| 1999 | 3.9484 | 
| 1998 | 3.90157 | 
| 1997 | 3.8639 | 
| 1996 | 3.84458 | 
| 1995 | 3.84042 | 
| 1994 | 3.82196 | 
| 1993 | 3.8082 | 
| 1992 | 3.81021 | 
| 1991 | 3.83218 | 
| 1990 | 3.88378 | 
| 1989 | 3.95372 | 
| 1988 | 4.00933 | 
| 1987 | 4.02627 | 
| 1986 | 4.03261 | 
| 1985 | 4.04029 | 
| 1984 | 4.0417 | 
| 1983 | 4.03974 | 
| 1982 | 4.04777 | 
| 1981 | 4.05891 | 
| 1980 | 4.06566 | 
| 1979 | 4.08328 | 
| 1978 | 4.11303 | 
| 1977 | 4.13745 | 
| 1976 | 4.15954 | 
| 1975 | 4.18276 | 
| 1974 | 4.20641 | 
| 1973 | 4.22838 | 
| 1972 | 4.2506 | 
| 1971 | 4.27433 | 
| 1970 | 4.29993 | 
| 1969 | 4.32747 | 
| 1968 | 4.35468 | 
| 1967 | 4.38089 | 
| 1966 | 4.40697 | 
| 1965 | 4.4325 | 
| 1964 | 4.4561 | 
| 1963 | 4.47805 | 
| 1962 | 4.4993 | 
| 1961 | 4.51956 | 
| 1960 | 4.53804 |