{"YEAR":1948,"DEPTH":4.39}
{"YEAR":1949,"DEPTH":4.85}
{"YEAR":1950,"DEPTH":4.15}
{"YEAR":1951,"DEPTH":8.54}
{"YEAR":1952,"DEPTH":1.72}
{"YEAR":1953,"DEPTH":3.32}
{"YEAR":1954,"DEPTH":2.42}
{"YEAR":1955,"DEPTH":3.07}
{"YEAR":1956,"DEPTH":1.98}
{"YEAR":1957,"DEPTH":3.72}
{"YEAR":1958,"DEPTH":4.14}
{"YEAR":1959,"DEPTH":4.43}
{"YEAR":1960,"DEPTH":9.14}
{"YEAR":1961,"DEPTH":3.56}
{"YEAR":1962,"DEPTH":6.25}
{"YEAR":1963,"DEPTH":2.77}
{"YEAR":1964,"DEPTH":3.96}
{"YEAR":1965,"DEPTH":6.07}
{"YEAR":1966,"DEPTH":2.82}
{"YEAR":1967,"DEPTH":2.19}
{"YEAR":1968,"DEPTH":2.3}
{"YEAR":1969,"DEPTH":3.66}
{"YEAR":1970,"DEPTH":1.37}
{"YEAR":1971,"DEPTH":3.9}
{"YEAR":1972,"DEPTH":1.99}
{"YEAR":1973,"DEPTH":2.62}
{"YEAR":1974,"DEPTH":4.16}
{"YEAR":1975,"DEPTH":2.75}
{"YEAR":1976,"DEPTH":2.66}
{"YEAR":1977,"DEPTH":2.62}
{"YEAR":1978,"DEPTH":6.16}
{"YEAR":1979,"DEPTH":4.72}
{"YEAR":1980,"DEPTH":1.98}
{"YEAR":1981,"DEPTH":3.12}
{"YEAR":1982,"DEPTH":5.02}
{"YEAR":1983,"DEPTH":3.08}
{"YEAR":1984,"DEPTH":4.96}
{"YEAR":1985,"DEPTH":3}
{"YEAR":1986,"DEPTH":3.35}
{"YEAR":1987,"DEPTH":3.23}
{"YEAR":1988,"DEPTH":4.73}
{"YEAR":1989,"DEPTH":3.56}
{"YEAR":1990,"DEPTH":3.13}
{"YEAR":1991,"DEPTH":2.05}
{"YEAR":1992,"DEPTH":4.6}
{"YEAR":1993,"DEPTH":4.09}
{"YEAR":1994,"DEPTH":2.66}