1979 9.824771 0.101784 8.8650% 1978 0.614989 1.626045 7.2813% 1977 4.516875 0.221392 6.6558% 1976 10.516443 0.095089 6.4073% 1975 2.362593 0.423264 9.8159% 1974 1.000000 1.000000 7.2813% 1977