Year	% gross
1974	25.1273002624512
1978	23.9321708679199
1979	25.4517803192139
1985	32.7277717590332
1986	33.8396682739258
1989	42.0071296691895
1991	42.1890411376953
1992	41.6937484741211
1993	40.2681503295898
1994	42.0990982055664
1995	40.9697303771973
1996	44.3633003234863
1997	50.9459609985352
1998	55.7020797729492
1999	58.8956108093262
2000	62.753490447998
2001	63.9884185791016
2002	66.2021179199219
2003	65.5384216308594
2004	67.382209777832
2005	86.8815231323242
2006	94.4268798828125
2007	80.9270172119141
2008	86.6889877319336
2009	90.1974563598633
2010	90.625
2011	88.5288391113281
2012	90.5752716064453
2013	92.0307235717773
2014	92.0519027709961
2015	93.4704971313477
2016	93.3093872070313
2017	93.2016983032227
2018	94.8631973266602
2019	92.4329681396484
2020	91.0889892578125