1976 0.630998 1.584791 6.4073% 1975 8.471721 0.118040 9.8159% 1974 2.084900 0.479639 9.0909% 1973 6.346419 0.157569 6.4509% 1972 1.413374 0.707527 4.7304% 1971 6.082334 0.164411 5.7132% 1970 1.242604 0.804762 5.5272% 1969 4.189684 0.238682 5.5714% 1968 0.136554 7.323101 5.0148% 1967 0.216515 4.618618 2.5719% 1966 4.487335 0.222849 3.5485% 1965 3.558055 0.281052 2.7360% 1964 0.128892 7.758422 1.5423% 1963 0.859425 1.163569 1.5697% 1962 2.773971 0.360494 2.2421% 1961 2.039216 0.490384 0.9709% 1960 2.019608 0.495146 1.6442% 1959 0.190681 5.244367 2.3579% 1958 0.103439 9.667512 2.0623% 1957 1.993191
stutterers