Year	% gross
1970	10.9594497680664
1971	11.03244972229
1972	11.3105201721191
1973	11.6122999191284
1974	11.7590799331665
1975	12.0590896606445
1976	12.3606100082397
1977	12.6649904251099
1978	13.2730798721313
1979	13.823769569397
1980	14.5859403610229
1981	15.597900390625
1982	16.7631206512451
1983	17.1524906158447
1984	17.6862907409668
1985	19.1296195983887
1986	19.9319705963135
1987	20.2387008666992
1988	20.0625591278076
1989	19.4656505584717
1990	19.8376598358154
1991	20.190580368042
1992	20.1410999298096
1993	20.3090591430664
1994	20.618989944458
1995	21.3636493682861
1996	21.6623802185059
1997	21.7297706604004
1998	22.2215900421143
1999	22.4851398468018
2000	22.7489700317383
2001	23.8152809143066
2002	24.3444805145264
2003	25.4303493499756
2004	26.7092704772949
2005	27.6332397460938
2006	28.5068607330322
2007	29.149040222168
2008	31.2663497924805
2009	33.1226387023926
2010	35.0816116333008
2011	36.3061981201172
2012	37.9135818481445
2013	40.6559295654297
2014	39.5777206420898
2015	40.2095603942871
2016	39.9146614074707
2017	40.3956909179688
2018	40.7691688537598
2019	41.3703308105469
2020	42.1420211791992
2021	42.5608215332031
2022	42.4736289978027