Year	% gross
1973	89.4887924194336
1974	88.4413070678711
1975	97.5826873779297
1976	104.074783325195
1977	103.853927612305
1978	101.35669708252
1979	100.89232635498
1980	100.821296691895
1981	102.145088195801
1982	102.74040222168
1983	105.028350830078
1984	107.373336791992
1985	111.999862670898
1986	116.573081970215
1987	118.814231872559
1988	117.491310119629
1989	115.194328308105
1990	110.838989257812
1991	109.679718017578
1992	108.691329956055
1993	107.775520324707
1994	107.749992370605
1995	108.389831542969
1996	108.409729003906
1997	108.86946105957
1998	108.931579589844
1999	110.633888244629
2000	112.127159118652
2001	113.363960266113
2002	112.074699401855
2003	110.890266418457
2004	109.879539489746
2005	108.285842895508
2006	106.612586975098
2007	106.984848022461
2008	107.380912780762
2009	107.159362792969
2010	107.016296386719
2011	106.705947875977
2012	106.413307189941
2013	105.779678344727
2014	102.665336608887
2015	101.675003051758
2016	101.514038085938
2017	101.336120605469
2018	101.002700805664
2019	101.120941162109
2020	101.652648925781
2021	101.930793762207
2022	102.344467163086