Sahel rainfall for the region 10-20N 15W-30E based on station data, season June-September
As percentage of 1961-90 mean.  Note quality of data improves with time.
1900       .68
1901     32.36
1902    -23.72
1903     31.71
1904      4.09
1905     30.68
1906     36.86
1907      4.99
1908     17.81
1909     41.83
1910      8.12
1911      3.65
1912      2.17
1913    -23.04
1914      2.59
1915      6.00
1916     14.53
1917       .29
1918     33.20
1919      1.67
1920     25.48
1921      4.80
1922     20.09
1923     20.95
1924     45.42
1925     10.10
1926     -3.98
1927     38.95
1928     28.76
1929     23.76
1930     33.79
1931     18.38
1932     19.70
1933     22.54
1934     32.62
1935     19.32
1936    107.14
1937     27.50
1938     16.58
1939     25.65
1940      4.89
1941    -12.47
1942    -13.39
1943     29.49
1944     -5.93
1945     35.64
1946     30.31
1947     24.73
1948    -11.04
1949      4.69
1950     70.08
1951      7.88
1952     63.24
1953     56.58
1954     58.39
1955     40.39
1956     27.41
1957     22.89
1958     58.19
1959     39.31
1960      1.85
1961     45.41
1962     46.59
1963      6.85
1964     38.03
1965     21.19
1966     -2.18
1967     13.59
1968      9.40
1969      1.24
1970     -8.73
1971    -15.87
1972    -25.43
1973    -26.23
1974     11.75
1975      2.80
1976     -7.60
1977     -9.09
1978      -.37
1979     11.60
1980      4.04
1981     10.56
1982    -10.75
1983    -19.63
1984    -34.81
1985    -11.67
1986    -17.83
1987    -30.76
1988     22.71
1989      4.88
1990    -29.68
1991     -2.64
1992     -8.58
1993     -4.63
1994     47.59
1995     -1.99