Year	% gross
1970	25.6056900024414
1971	25.7647304534912
1972	26.2313899993896
1973	27.1834201812744
1974	28.035400390625
1975	29.4554901123047
1976	31.0973796844482
1977	33.0509796142578
1978	34.8158912658691
1979	36.2759284973145
1980	37.5573310852051
1981	38.5814514160156
1982	40.2227210998535
1983	41.3920516967773
1984	42.7126617431641
1985	44.2180099487305
1986	46.1423492431641
1987	47.076530456543
1988	47.4276809692383
1989	48.1039085388184
1990	50.8580513000488
1991	51.0616989135742
1992	50.1839408874512
1993	50.8859100341797
1994	52.878490447998
1995	52.8887481689453
1996	52.7200508117676
1997	53.9447288513184
1998	55.3900909423828
1999	56.7645416259766
2000	58.1084899902344
2001	59.6603202819824
2002	60.7651786804199
2003	62.5685882568359
2004	64.3044891357422
2005	64.3619079589844
2006	64.1618118286133
2007	62.951831817627
2008	63.2281913757324
2009	64.8013000488281
2010	65.6285171508789
2011	67.7357025146484
2012	68.4229888916016
2013	66.9244918823242
2014	67.0499267578125
2015	67.8301467895508
2016	67.876106262207
2017	68.2694778442383
2018	68.5178985595703
2019	68.8884963989258
2020	68.9869537353516
2021	69.7657165527344
2022	70.2591400146484