Year	% gross
1970	79.9530715942383
1971	79.9729309082031
1972	80.81884765625
1973	82.3554916381836
1974	83.4986114501953
1975	84.9101181030273
1976	85.5099105834961
1977	86.5781021118164
1978	87.1222381591797
1979	87.5014266967773
1980	87.8701095581055
1981	88.8527374267578
1982	89.3685607910156
1983	89.5621490478516
1984	89.7598876953125
1985	90.451042175293
1986	90.9287185668945
1987	91.4481735229492
1988	91.8044128417969
1989	91.8026428222656
1990	92.1392822265625
1991	88.9228820800781
1992	86.4084777832031
1993	87.9135131835938
1994	88.7460174560547
1995	89.1485595703125
1996	90.3398895263672
1997	91.0029830932617
1998	89.832649230957
1999	90.2479095458984
2000	91.7182769775391
2001	93.685920715332
2002	95.3924789428711
2003	96.8520965576172
2004	93.5607299804688
2005	94.5363311767578
2006	95.9758377075195
2007	95.5906982421875
2008	97.9197769165039
2009	99.6371917724609
2010	100.191871643066
2011	100.422470092773
2012	99.4695129394531
2013	104.618919372559
2014	103.39811706543
2015	102.065467834473
2016	101.0078125
2017	100.81867980957
2018	100.553939819336
2019	99.7938232421875
2020	101.516448974609
2021	98.7198867797852
2022	98.684211730957