Year	% gross
1970	66.0710296630859
1971	66.1768417358398
1972	67.5715408325195
1973	68.7226867675781
1974	69.0941925048828
1975	70.533088684082
1976	72.0075988769531
1977	72.7808303833008
1978	73.1301727294922
1979	74.9248733520508
1980	76.0088577270508
1981	75.9566116333008
1982	76.7008514404297
1983	77.4231872558594
1984	78.2334823608398
1985	78.0311431884766
1986	78.6870269775391
1987	79.5931396484375
1988	80.2281188964844
1989	80.1242599487305
1990	80.9802627563477
1991	81.8153610229492
1992	79.3022384643555
1993	79.918586730957
1994	82.337043762207
1995	81.1727905273438
1996	83.3978424072266
1997	84.3312835693359
1998	85.1208419799805
1999	86.2044372558594
2000	86.7091522216797
2001	87.2163696289062
2002	88.3327865600586
2003	89.2311019897461
2004	89.7756729125977
2005	90.4591369628906
2006	91.4828033447266
2007	91.6917495727539
2008	92.2233963012695
2009	92.3047103881836
2010	92.7497711181641
2011	92.1585235595703
2012	93.777229309082
2013	92.4420623779297
2014	91.3780670166016
2015	90.7469863891602
2016	90.048713684082
2017	89.7441864013672
2018	89.9968566894531
2019	90.3398284912109
2020	90.7052993774414
2021	90.6816482543945
2022	89.5066223144531