8.8650% 1978 0.550977 1.814958 7.2813% 1977 2.109732 0.473994 6.6558% 1976 4.292536 0.232963 6.4073% 1975 5.201684 0.192245 9.8159% 1974 0.474515 2.107413 9.0909% 1973 1.911159 0.523243 6.4509% 1972 0.396082 2.524732 4.7304% 1971 5.223540 0.191441 5.7132% 1970 5.915457 0.169049
rifts