Year	% gross
1976	46.5524482727051
1981	51.5714111328125
1982	51.9074592590332
1983	54.0320587158203
1984	55.975341796875
1985	57.4833717346191
1986	59.9029998779297
1987	75.3709030151367
1988	77.6344680786133
1989	79.6025924682617
1990	80.5660018920898
1991	79.4695281982422
1992	81.1232223510742
1993	81.7998580932617
1994	82.937629699707
1995	83.3374176025391
2010	93.6184768676758
2011	94.4419174194336
2012	92.843132019043
2013	92.9487228393555
2014	91.3809967041016
2015	92.2229995727539
2016	91.7471618652344
2017	90.9378814697266
2018	92.9220275878906
2021	88.8550033569336