Year % gross 1983 0.941190004348755 1984 1.10376000404358 1986 1.49330997467041 1992 3.5867600440979 2010 5.99081993103027 2011 5.91722011566162 2012 6.13316011428833 2013 6.45996999740601 2015 9.45783042907715 2016 6.96000003814697 2017 7.98299980163574 2018 8.10000038146973 2019 9.80599975585938 2020 9.54399967193604