Year	% gross
1970	6.75428009033203
1971	6.71857023239136
1972	6.69961977005005
1973	7.4664101600647
1974	8.17486000061035
1975	8.40209007263184
1976	8.04782962799072
1980	12.3972902297974
2001	29.3798999786377
2002	31.0377006530762
2003	31.1086597442627
2004	32.2386894226074
2005	32.525218963623
2006	34.561580657959
2016	74.6067581176758
2017	73.859016418457