Year	% gross
1973	3.42135000228882
1974	4.3295202255249
1975	5.11455011367798
1978	5.14696979522705
1982	8.10711002349854
1983	10.7050504684448
1984	11.6634197235107
1985	12.5219297409058
1986	12.6185398101807
1994	19.1538791656494
1995	20.6557807922363
1996	19.7000408172607
1998	22.0915699005127
1999	22.0150299072266
2000	20.8429393768311
2001	19.9008197784424
2002	20.6309204101562
2003	21.309009552002
2004	22.5678291320801
2005	23.4892501831055
2006	24.3251800537109
2007	25.9948101043701
2008	26.9340705871582
2009	27.4595699310303
2010	28.026439666748
2011	29.0441093444824
2012	29.8946704864502
2013	30.3020896911621
2014	29.6984405517578
2015	29.6777305603027
2016	29.5919609069824
2017	30.0432205200195
2018	30.8037109375
2019	31.3250598907471
2020	34.0673217773438