Year % gross 1975 15.4453201293945 1976 27.9352207183838 1977 21.4285697937012 1978 29.4294300079346 1979 24.8932304382324 1984 20.8835296630859 2007 82.7368392944336 2008 85.0777893066406 2010 94.4933929443359 2011 88.6988830566406 2012 97.0909118652344 2013 94.6733016967773 2014 92.9469299316406 2016 71.9632797241211 2017 68.8750915527344 2018 66.5991897583008