6.6558% 1976 5.487120 0.182245 6.4073% 1975 7.412322 0.134910 9.8159% 1974 7.605501 0.131484 9.0909% 1973 0.255192 3.918622 6.4509% 1972 1.945589 0.513983 4.7304% 1971 3.020417 0.331080 5.7132% 1970 2.857182 0.349995 5.5272% 1969 0.464414 2.153253 5.5714% 1968 4.772194 0.209547 5.0148% 1967 0.605389 1.651831 2.5719% 1966 2.215200 0.451427 3.5485% 1965 4.024001 0.248509 2.7360%
operators