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{"Year":1948,"Cost":183.161,"K":0.05817,"L":0.27716,"E":0.05127,"M":0.6134,"Pk":1.0027,"Pl":1.15457,"Pe":1.30258,"Pm":1.05525}
{"Year":1949,"Cost":186.533,"K":0.04602,"L":0.25911,"E":0.05075,"M":0.64411,"Pk":0.74371,"Pl":1.15584,"Pe":1.19663,"Pm":1.06225}
{"Year":1950,"Cost":221.71,"K":0.04991,"L":0.24794,"E":0.04606,"M":0.65609,"Pk":0.92497,"Pl":1.23535,"Pe":1.12442,"Pm":1.1243}
{"Year":1951,"Cost":255.945,"K":0.05039,"L":0.25487,"E":0.04482,"M":0.64992,"Pk":1.04877,"Pl":1.33784,"Pe":1.25179,"Pm":1.21694}
{"Year":1952,"Cost":264.699,"K":0.04916,"L":0.26655,"E":0.0446,"M":0.63969,"Pk":0.99744,"Pl":1.37949,"Pe":1.27919,"Pm":1.19961}
{"Year":1953,"Cost":291.16,"K":0.04728,"L":0.26832,"E":0.04369,"M":0.64071,"Pk":1.00653,"Pl":1.43458,"Pe":1.27505,"Pm":1.19044}
{"Year":1954,"Cost":274.457,"K":0.05635,"L":0.27167,"E":0.04787,"M":0.62411,"Pk":1.08757,"Pl":1.45362,"Pe":1.30356,"Pm":1.20612}
{"Year":1955,"Cost":308.908,"K":0.05258,"L":0.26465,"E":0.04517,"M":0.6376,"Pk":1.10315,"Pl":1.5112,"Pe":1.34277,"Pm":1.23835}
{"Year":1956,"Cost":328.286,"K":0.04604,"L":0.2688,"E":0.04576,"M":0.6394,"Pk":0.99606,"Pl":1.58186,"Pe":1.37154,"Pm":1.29336}
{"Year":1957,"Cost":338.633,"K":0.05033,"L":0.27184,"E":0.0482,"M":0.62962,"Pk":1.06321,"Pl":1.64641,"Pe":1.3801,"Pm":1.30703}
{"Year":1958,"Cost":323.318,"K":0.06015,"L":0.27283,"E":0.04836,"M":0.61866,"Pk":1.15619,"Pl":1.67389,"Pe":1.39338,"Pm":1.32699}
{"Year":1959,"Cost":358.435,"K":0.06185,"L":0.27303,"E":0.04563,"M":0.61948,"Pk":1.30758,"Pl":1.7343,"Pe":1.36756,"Pm":1.30774}
{"Year":1960,"Cost":366.251,"K":0.05788,"L":0.27738,"E":0.04585,"M":0.61889,"Pk":1.25413,"Pl":1.7828,"Pe":1.38025,"Pm":1.33946}
{"Year":1961,"Cost":366.162,"K":0.05903,"L":0.27839,"E":0.0464,"M":0.61617,"Pk":1.26328,"Pl":1.81977,"Pe":1.3763,"Pm":1.34319}
{"Year":1962,"Cost":390.668,"K":0.05578,"L":0.2828,"E":0.0453,"M":0.61613,"Pk":1.26525,"Pl":1.88531,"Pe":1.37689,"Pm":1.34745}
{"Year":1963,"Cost":412.188,"K":0.05601,"L":0.27968,"E":0.0447,"M":0.61962,"Pk":1.32294,"Pl":1.93379,"Pe":1.34737,"Pm":1.33143}
{"Year":1964,"Cost":433.768,"K":0.05452,"L":0.28343,"E":0.04392,"M":0.61814,"Pk":1.32798,"Pl":2.00998,"Pe":1.38969,"Pm":1.35197}
{"Year":1965,"Cost":474.969,"K":0.05467,"L":0.27996,"E":0.04114,"M":0.62423,"Pk":1.40659,"Pl":2.05539,"Pe":1.38635,"Pm":1.37542}
{"Year":1966,"Cost":521.291,"K":0.0546,"L":0.28363,"E":0.04014,"M":0.62163,"Pk":1.451,"Pl":2.13441,"Pe":1.40102,"Pm":1.41878}
{"Year":1967,"Cost":540.941,"K":0.05443,"L":0.28646,"E":0.04074,"M":0.61837,"Pk":1.38617,"Pl":2.20616,"Pe":1.39197,"Pm":1.42428}
{"Year":1968,"Cost":585.447,"K":0.05758,"L":0.28883,"E":0.03971,"M":0.61388,"Pk":1.49901,"Pl":2.33869,"Pe":1.43388,"Pm":1.43481}
{"Year":1969,"Cost":630.45,"K":0.0541,"L":0.29031,"E":0.03963,"M":0.61597,"Pk":1.44957,"Pl":2.46412,"Pe":1.46481,"Pm":1.53356}
{"Year":1970,"Cost":623.466,"K":0.05255,"L":0.29755,"E":0.04348,"M":0.60642,"Pk":1.32464,"Pl":2.60532,"Pe":1.45907,"Pm":1.54758}
{"Year":1971,"Cost":658.235,"K":0.04675,"L":0.28905,"E":0.04479,"M":0.6194,"Pk":1.20177,"Pl":2.76025,"Pe":1.64689,"Pm":1.54978}