CR7.6 Manatees are large marine mammals found along the coast of Florida. Data on the total number of manatee deaths per year reported by the Florida Marine Research Center is given in the accompanying table.

Construct a time series plot of these data and comment on any trends over time.

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Year Number of Manatee Deaths 1974 7 1975 28 1976 58 1977 109 1978 77 1979 72 1980 56 1981 112 1982 111 1983 71 1984 119 1985 112 1986 117 1987 109 1988 127 1989 164