Year	% gross
1970	44.0007019042969
1971	42.3076705932617
1972	43.2308006286621
1973	43.4998397827148
1974	43.8262405395508
1975	45.6687202453613
1976	46.699821472168
1977	47.7908897399902
1978	48.2290000915527
1979	48.6177215576172
1980	48.9529991149902
1981	48.5907402038574
1982	49.1302909851074
1983	49.9158096313477
1984	50.3175010681152
1985	50.6145896911621
1986	50.4926910400391
1987	50.4478187561035
1988	50.5460815429688
1989	50.1681900024414
1990	51.1218490600586
1991	52.0001983642578
1992	52.3018417358398
1993	52.6181488037109
1994	53.1358489990234
1995	54.5930786132812
1996	55.0949401855469
1997	56.1507987976074
1998	56.7575912475586
1999	57.0730781555176
2000	58.4132499694824
2001	59.4340286254883
2002	60.2885284423828
2003	61.1608009338379
2004	62.9946594238281
2005	63.5550003051758
2006	64.1854019165039
2007	65.403190612793
2008	65.7931213378906
2009	67.0273666381836
2010	67.8619689941406
2011	68.436767578125
2012	68.9056396484375
2013	69.2845001220703
2014	69.9235229492188
2015	70.2210235595703
2016	70.9018096923828
2017	71.2808227539062
2018	71.7175827026367
2019	72.3763809204102
2020	72.3824081420898
2021	72.3050689697266
2022	72.3824691772461