Sample Interval is 01/01 12/31 Acceptable missing, in percent = 10.0 Year Avg 1917.00 -99.00000 1918.00 76.78082 1919.00 75.86301 1920.00 74.72678 1921.00 76.74521 1922.00 -99.00000 1923.00 79.72055 1924.00 77.93716 1925.00 76.85838 1926.00 78.76164 1927.00 75.33698 1928.00 76.16666 1929.00 75.66850 1930.00 74.58082 1931.00 75.51233 1932.00 76.34153 1933.00 75.38630 1934.00 -99.00000 1935.00 -99.00000 1936.00 -99.00000 1937.00 -99.00000 1938.00 -99.00000 1939.00 78.08611 1940.00 -99.00000 1941.00 -99.00000 1942.00 77.16119 1943.00 -99.00000 1944.00 75.48256 1945.00 75.15385 1946.00 75.47253 1947.00 76.62192 1948.00 74.70492 1949.00 74.91781 1950.00 79.01370 1951.00 76.09589 1952.00 75.52732 1953.00 76.59452 1954.00 76.10448 1955.00 74.30959 1956.00 76.54918 1957.00 74.74239 1958.00 -99.00000 1959.00 79.75890 1960.00 80.04023 1961.00 78.91644 1962.00 78.15804 1963.00 77.62643 1964.00 76.67046 1965.00 -99.00000 1966.00 76.76093 1967.00 76.06035 1968.00 77.50448 1969.00 -99.00000 1970.00 -99.00000 1971.00 -99.00000 1972.00 -99.00000 1973.00 72.36264 1974.00 73.58356 1975.00 72.26923 1976.00 74.18904 1977.00 75.22739 1978.00 73.96712 1979.00 74.57260 1980.00 75.20492 1981.00 76.13972 1982.00 71.72329 1983.00 72.27945 1984.00 -99.00000 1985.00 74.09315 1986.00 75.77261 1987.00 73.84657 1988.00 75.26776 1989.00 76.56986 1990.00 75.39726 1991.00 74.75890 1992.00 74.37978 1993.00 73.80822 1994.00 75.34247 1995.00 75.22466 1996.00 76.77869