Year	% gross
1971	97.2528686523438
1972	97.8454132080078
1973	97.5067825317383
1974	96.9973297119141
1975	97.0612030029297
1976	97.5309295654297
1977	97.9963912963867
1978	98.3861389160156
1979	98.9919662475586
1980	99.2336807250977
1981	99.3479080200195
1982	99.0628890991211
1983	99.041389465332
1984	98.892448425293
1985	99.5174026489258
1986	98.6991119384766
1987	98.6874313354492
1988	98.7873611450195
1989	98.8076400756836
1990	99.2420425415039
1991	99.5812072753906
1992	100.046356201172
1993	104.950736999512
1994	105.612747192383
1995	106.24503326416
1996	106.35791015625
1997	106.130821228027
1998	110.967010498047
1999	109.465629577637
2000	108.265350341797
2001	108.32137298584
2002	108.606773376465
2003	109.180297851562
2004	99.8570022583008
2005	100.023719787598
2006	100.068557739258
2007	99.818717956543
2008	99.9405212402344
2009	99.3106994628906
2010	98.9655990600586
2011	97.6549301147461
2012	99.4403305053711
2013	121.546279907227
2014	121.237861633301
2015	122.106079101562
2016	123.155532836914
2017	123.897529602051
2018	124.961067199707
2019	123.095062255859
2020	122.771789550781
2021	120.985420227051
2022	120.383171081543