Year	% gross
1971	0
1972	0
1973	0.208379998803139
1974	0.43147999048233
1975	0.709290027618408
1976	1.29074001312256
1977	2.30393004417419
1978	4.82372999191284
1979	6.98678016662598
1980	9.41652011871338
1981	12.6784496307373
1982	15.4189195632935
1983	19.6972198486328
1984	22.7216701507568
1985	26.7026290893555
1986	28.0131702423096
1987	29.659309387207
1988	31.3030605316162
1989	33.9898490905762
1990	38.523120880127
1991	43.5851898193359
1992	48.5242614746094
1993	54.226921081543
1994	59.7801895141602
1995	62.4774589538574
1996	64.6196975708008
1997	65.4108505249023
1998	67.5381774902344
1999	69.8405838012695
2000	77.5544662475586
2001	80.0002517700195
2002	82.3686370849609
2003	83.6306076049805
2005	87.4191207885742
2006	89.8000335693359
2007	92.0884475708008
2008	93.2216796875
2009	98.9851303100586
2011	114.451622009277
2012	110.750350952148
2013	109.403869628906
2015	102.172729492188
2016	102.609092712402
2017	101.806747436523
2018	104.058486938477
2019	102.221549987793
2020	94.6001205444336
2021	94.2872695922852
2022	91.9760131835938