Year	% gross
1971	20.1430606842041
1972	22.1087799072266
1973	24.4629802703857
1974	23.2522602081299
1975	26.7683506011963
1976	28.5445995330811
1977	29.5813503265381
1978	30.9342594146729
1979	34.8361892700195
1980	37.6075096130371
1981	37.0111999511719
1982	39.9016418457031
1983	41.3827285766602
1984	41.0582885742188
1985	41.4062805175781
1986	40.4236717224121
1987	40.7799797058105
1988	40.1696586608887
1989	39.8871917724609
1990	33.5012016296387
1991	37.1829490661621
1992	39.6198883056641
1993	43.6549415588379
1994	45.3991584777832
1995	48.716869354248
1996	51.4445190429688
1997	55.5143089294434
1998	59.7323417663574
1999	61.4711990356445
2000	65.3165893554688
2001	71.9803237915039
2002	77.6158218383789
2003	81.922607421875
2004	87.275749206543
2005	86.4619522094727
2006	88.4518585205078
2008	102.666709899902
2009	108.621162414551
2010	110.840942382812
2011	112.769073486328
2012	117.307289123535
2013	118.678253173828
2014	119.691253662109
2015	122.562881469727
2016	121.407402038574
2017	117.440940856934
2018	113.190307617188
2019	107.778297424316
2020	104.733200073242
2021	106.226989746094
2022	108.674530029297