Year	% gross
1981	60.6841888427734
1982	61.7533302307129
1983	63.2052612304688
1984	64.3840713500977
1985	64.9081802368164
1986	61.9042091369629
1987	64.6887588500977
1988	66.3765029907227
1989	69.9045104980469
1990	71.0770874023438
1998	73.057243347168
1999	73.1988983154297
2001	73.7928009033203
2002	77.3451232910156
2003	78.4635391235352
2004	79.5527572631836
2005	77.851188659668
2006	75.9245986938477
2007	75.7256927490234
2008	77.0631408691406
2009	80.5795211791992
2014	82.6210021972656
2015	83.4670028686523
2016	83.6549987792969
2017	80.5877990722656
2018	77.9339981079102
2019	83.802001953125
2020	85.6829986572266
2021	83.2699966430664
2022	90.1709976196289