December 1988 (next scheduled for September 1990, but has

2.9715% 1984 13.296890 0.075206 3.6576% 1983 7.529108 0.132818 3.8998% 1982 6.849504 0.145996 6.3831% 1981 0.847607 1.179793 9.6843% 1980 6.801426 0.147028 9.0330% 1979 2.889727 0.346053 8.8650% 1978 9.890671 0.101105 7.2813% 1977 7.917655 0.126300 6.6558% 1976 2.474506 0.404121 6.4073% 1975 9.883200 0.101182 9.8159% 1974 1.356762 0.737049 9.0909% 1973 0.265399 3.767905 6.4509% 1972 3.185026 0.313969 4.7304% 1971 2.901943 0.344597 5.7132% 1970 2.800037 0.357138 5.5272% 1969 2.707533 0.369340 5.5714% 1968 0.377000 2.652518 5.0148% 1967 1.208749 0.827302 2.5719% 1966 0.160408 6.234096 3.5485% 1965 4.024001 0.248509 2.7360% 1964 3.963750 0.252286 1.5423% 1963 4.101343

Monongahela