Year	% gross
1970	81.3582763671875
1971	81.429313659668
1972	82.2325897216797
1973	83.475830078125
1974	84.7030029296875
1975	85.1929397583008
1976	85.6429595947266
1977	86.2177276611328
1978	86.4638519287109
1979	86.7952423095703
1980	86.932991027832
1981	86.9868621826172
1982	87.2276306152344
1983	87.4920806884766
1984	87.7543716430664
1985	88.3342971801758
1986	89.5560073852539
1987	90.0366592407227
1988	90.3395233154297
1989	90.5200729370117
1990	90.7287063598633
1991	90.5171127319336
1992	90.4830474853516
1993	91.9603118896484
1994	92.8705902099609
1995	93.3071899414062
1996	93.2928924560547
1997	92.9998931884766
1998	92.6885833740234
1999	93.5514678955078
2000	94.4599304199219
2001	96.4336700439453
2002	97.7489929199219
2003	98.6460113525391
2004	96.3477401733398
2005	96.0533905029297
2006	96.5311126708984
2007	96.9483489990234
2008	97.5182723999023
2009	97.3718566894531
2010	99.0707015991211
2011	99.4067306518555
2012	98.9682312011719
2013	104.496871948242
2014	104.909820556641
2015	104.824020385742
2016	104.54776763916
2017	105.439346313477
2018	105.221710205078
2019	104.944152832031
2020	104.145538330078
2021	103.760276794434
2022	103.853889465332