Year	% gross
1970	4.47268009185791
1971	2.47537994384766
1972	2.38930010795593
1973	2.36030006408691
1974	2.25190997123718
1975	1.87765002250671
1976	2.28490996360779
1977	2.22424006462097
1978	1.95339000225067
1979	1.64919996261597
1980	1.3181699514389
1981	1.1389399766922
1982	1.20013999938965
1983	0.834330022335052
1984	0.960240006446838
1985	1.22773003578186
1986	1.24229001998901
1987	1.69345998764038
1988	2.50550007820129
1989	2.62473011016846
1990	4.1924901008606
1991	4.58597993850708
1994	5.83538007736206
1995	5.87877988815308
1997	6.93834018707275
1999	10.3723096847534
2000	11.4450302124023
2001	14.9688196182251
2002	15.7547903060913
2003	17.2326202392578
2004	18.3564491271973
2005	21.4267692565918
2006	23.6043300628662
2007	22.3313808441162
2008	23.5124206542969
2009	27.5387496948242
2010	28.68044090271
2011	31.3201503753662
2012	34.3335418701172
2013	37.0398712158203
2014	36.3217887878418
2015	33.190788269043
2016	34.1505012512207
2017	33.3625793457031
2018	33.7738914489746
2019	35.6356201171875
2020	34.6355590820312
2021	35.263801574707
2022	37.7336196899414