Year	% gross
1970	33.3158988952637
1971	37.0465202331543
1972	41.4541015625
1973	45.4763412475586
1974	48.3576316833496
1975	48.9101181030273
1976	49.4935417175293
1977	49.6496315002441
1978	48.5012283325195
1979	45.4869613647461
1980	41.4646110534668
1981	39.2982788085938
1982	37.6391487121582
1983	37.031810760498
1984	37.2909812927246
1985	38.7112693786621
1986	40.1233215332031
1987	42.6477012634277
1988	44.4557609558105
1989	45.6832885742188
1990	46.5614814758301
1991	48.4092903137207
1992	50.4484100341797
1993	52.0151214599609
1994	53.3783493041992
1995	55.2395095825195
1996	57.850830078125
1997	59.7439117431641
1998	61.9630813598633
1999	63.8026084899902
2000	65.229850769043
2001	67.7214508056641
2002	71.5456695556641
2003	72.0851516723633
2004	74.4966888427734
2005	76.5265731811523
2006	77.7985916137695
2007	82.3801727294922
2008	84.9639511108398
2009	88.5788116455078
2010	89.7980728149414
2011	91.2354202270508
2012	91.6338500976562
2013	94.4631423950195
2014	94.6370697021484
2015	94.7071304321289
2016	94.5198211669922
2017	94.7541122436523
2018	95.4600677490234
2019	96.1406936645508
2020	96.2790069580078
2021	96.9012908935547
2022	97.1636962890625