1974 4.122054 0.242597 9.0909% 1973 1.504550 0.664651 6.4509% 1972 3.604769 0.277410 4.7304% 1971 1.632349 0.612614 5.7132% 1970 3.307134 0.302377 5.5272% 1969 0.270013 3.703527 5.5714% 1968 5.544156 0.180370 5.0148% 1967 0.130033 7.690337 2.5719% 1966 1.464402 0.682873 3.5485% 1965 2.380287 0.420117 2.7360% 1964 0.232128 4.307975 1.5423% 1963 4.000218 0.249986 1.5697% 1962 4.089884 0.244506 2.2421% 1961 1.223534 0.817305 0.9709% 1960
sedimentary