"Year","All","Men","Women"
1951,3.276558,7.505399,0.5086697
1952,3.336952,7.664945,0.5396944
1953,3.430359,7.897329,0.5848062
1954,3.526932,8.14779,0.6173106
1955,3.625293,8.363575,0.6669158
1956,3.695396,8.345674,0.787174
1957,3.719958,8.073197,0.9566109
1958,3.963572,8.342078,1.110921
1959,4.047147,8.12647,1.336806
1960,4.123173,7.744108,1.678615
1961,4.404873,7.755521,2.119461
1962,4.282925,7.678497,1.986627
1963,4.355069,7.782796,2.102993
1964,4.46511,7.672768,2.401132
1965,4.54573,7.59573,2.622962
1966,4.580941,7.413454,2.820282
1967,4.627549,7.316458,2.964951
1968,4.649251,7.195933,3.074412
1969,4.646267,7.021866,3.171288
1970,4.706653,7.000207,3.273805
1971,4.894184,7.059501,3.532998
1972,5.119471,7.239631,3.762139
1973,5.431362,7.67691,3.971161
1974,5.569275,7.834352,4.086866
1975,5.573581,7.747277,4.14232
1976,5.568388,7.659251,4.184139
1977,5.480021,7.391162,4.192666
1978,5.313666,7.061197,4.11742
1979,5.29467,6.966869,4.136218