0.155315 9.6843% 1980 0.628849 1.590207 9.0330% 1979 0.455815 2.193873 8.8650% 1978 9.256825 0.108028 7.2813% 1977 8.412212 0.118875 6.6558% 1976 7.695155 0.129952 6.4073% 1975 2.362593 0.423264 9.8159% 1974 0.247489 4.040591 9.0909% 1973 0.629765 1.587895 6.4509% 1972 6.940664 0.144078 4.7304% 1971 5.999898
librarians