Year	% gross
1970	23.8132495880127
1971	23.7071495056152
1972	24.047779083252
1973	24.5538806915283
1974	24.9932193756104
1975	25.5185108184814
1976	26.2571697235107
1977	26.9293098449707
1978	27.4713401794434
1979	27.5540199279785
1980	27.788459777832
1981	28.0421905517578
1982	28.4916191101074
1983	29.2665691375732
1984	29.9223899841309
1985	30.6356105804443
1986	31.1645793914795
1987	31.2459201812744
1988	31.5832405090332
1989	32.1066703796387
1990	32.7367286682129
1991	33.4640197753906
1992	34.2995109558105
1993	35.4748802185059
1994	37.1706504821777
1995	38.6285095214844
1996	40.1324615478516
1997	42.0933418273926
1998	43.6459617614746
1999	45.8398704528809
2000	47.9864196777344
2001	50.9508781433105
2002	54.3661613464355
2003	57.0892105102539
2004	58.9590797424316
2005	60.995849609375
2006	62.7899208068848
2007	64.1210174560547
2008	65.2536926269531
2009	66.5606384277344
2010	68.1291427612305
2011	69.135612487793
2012	69.3401031494141
2013	70.1709518432617
2014	71.3934936523438
2015	72.5397262573242
2016	74.0041580200195
2017	75.7982482910156
2018	77.6991806030273
2019	79.9159164428711
2020	81.8722686767578
2021	85.5642395019531
2022	85.7997970581055