Year	% gross
1971	122.287178039551
1972	118.292999267578
1973	121.76734161377
1974	126.236442565918
1975	124.20686340332
1976	111.577972412109
1977	125.15364074707
1978	127.333831787109
1979	131.539474487305
1980	128.993347167969
1981	121.662910461426
1982	126.357467651367
1983	128.092956542969
1984	129.181884765625
1985	128.773788452148
1986	129.271453857422
1987	116.017120361328
1988	115.014221191406
1989	119.450286865234
1990	108.9775390625
1991	104.000068664551
1992	123.12272644043
1993	130.610977172852
1994	143.464416503906
1999	101.701080322266
2001	105.870452880859
2002	105.987823486328
2005	107.749862670898
2006	106.310699462891
2007	102.543876647949
2008	108.020362854004
2009	108.808937072754
2010	107.706901550293
2011	105.419067382812
2012	105.729858398438
2013	105.748481750488
2014	106.18824005127
2015	108.630508422852
2016	108.604637145996
2017	104.588272094727
2018	103.715621948242
2019	104.893180847168
2020	104.956443786621
2021	98.0430068969727