Year % gross 1970 0.315230011940002 1975 0.4966000020504 1977 1.01637995243073 1980 1.16465997695923 1981 1.31887996196747 1982 1.25843000411987 1984 3.46850991249084 1985 4.77229022979736 1986 4.257080078125 1988 5.1154899597168 2003 3.44001007080078 2011 0.980000019073486