Year	% gross
1970	78.1953506469727
1971	78.1508483886719
1972	79.0721588134766
1973	81.089729309082
1974	82.764518737793
1975	83.5828094482422
1976	84.4565811157227
1977	85.4600219726562
1978	85.9186477661133
1979	86.4843215942383
1980	87.005989074707
1981	87.1530914306641
1982	87.6157836914062
1983	88.1428070068359
1984	88.5988235473633
1985	89.4729232788086
1986	91.307861328125
1987	92.3124084472656
1988	92.9140472412109
1989	93.5318069458008
1990	94.03759765625
1991	94.3682632446289
1992	95.0193176269531
1993	98.3673095703125
1994	101.365142822266
1995	102.111801147461
1996	102.858467102051
1997	102.870719909668
1998	100.766586303711
1999	101.149223327637
2000	101.282157897949
2001	102.539588928223
2002	103.39372253418
2003	103.8154296875
2004	101.556823730469
2005	103.071853637695
2006	103.847763061523
2007	103.82666015625
2008	104.984901428223
2009	105.665153503418
2010	107.032821655273
2011	107.701690673828
2012	106.702003479004
2013	108.92529296875
2014	108.210029602051
2015	107.888359069824
2016	107.015953063965
2017	107.27604675293
2018	107.401863098145
2019	107.140602111816
2020	107.249298095703
2021	106.710639953613
2022	106.711227416992