Year	% gross
1970	70.8113021850586
1971	70.6607513427734
1972	71.8277130126953
1973	73.9518890380859
1974	76.1466217041016
1975	78.0696411132812
1976	79.8910980224609
1977	81.9419937133789
1978	83.6829833984375
1979	83.4177017211914
1980	87.2605133056641
1981	87.9454803466797
1982	88.8852691650391
1983	89.6084518432617
1984	90.3150787353516
1985	90.2276916503906
1986	91.7930297851562
1987	92.6444702148438
1988	92.7854080200195
1989	93.0187072753906
1990	93.2800827026367
1991	94.2413482666016
1992	95.0051574707031
1993	96.9087371826172
1994	98.7214431762695
1995	99.2911834716797
1996	99.7412490844727
1997	100.032470703125
1998	99.3979721069336
1999	99.8882522583008
2000	100.277618408203
2001	100.854431152344
2002	101.222038269043
2003	101.29695892334
2004	100.452949523926
2005	101.036750793457
2006	100.734878540039
2007	100.606582641602
2008	101.094291687012
2009	101.406272888184
2010	102.127639770508
2011	101.863357543945
2012	101.786231994629
2013	105.060348510742
2014	105.333541870117
2015	105.454963684082
2016	105.065368652344
2017	105.191680908203
2018	104.882118225098
2019	104.799652099609
2020	104.567161560059
2021	105.173797607422
2022	105.395156860352