Year	% gross
1970	6.46218013763428
1971	8.07693004608154
1972	10.063759803772
1975	12.8126697540283
1976	10.5968904495239
1977	10.0684299468994
1978	9.82203960418701
1979	8.83462047576904
1980	10.8434600830078
1983	12.5291900634766
1984	13.2604598999023
1985	13.9901695251465
1986	15.3016395568848
1987	16.1267604827881
1993	23.8377208709717
1994	24.770320892334
1995	25.3165893554688
1996	26.9548606872559
1997	28.240930557251
1998	30.1106700897217
1999	34.0391693115234
2000	33.8670997619629
2002	38.8111801147461
2003	42.2481002807617
2004	43.1825790405273
2005	49.1449317932129
2006	49.2365989685059
2007	54.9347190856934
2008	57.5880508422852
2009	61.8148498535156
2010	68.7548294067383
2011	74.2490615844727
2012	79.3598098754883
2013	84.185920715332
2014	88.3447723388672
2015	91.1619186401367
2016	94.3506622314453
2017	96.2910690307617
2018	98.3041305541992
2019	99.3416137695312
2020	96.7710113525391
2021	105.963073730469
2022	108.697647094727