Year	% gross
1980	2.55452990531921
1983	2.13597989082336
1984	2.61213994026184
1985	2.11965990066528
1986	2.57897996902466
1995	4.24694013595581
1996	4.10606002807617
1998	2.47546005249023
1999	2.43053007125854