Year	% gross
1980	49.9273300170898
1981	53.7787704467773
1982	54.060661315918
1983	54.1565589904785
1984	55.8389015197754
1985	56.5363693237305
1986	60.0993499755859
1987	62.7272415161133
1988	64.0297622680664
1989	60.9040794372559
1990	61.9653587341309
1991	65.6988830566406
1992	66.9894332885742
1993	68.1402130126953
1994	69.3940734863281
1995	70.6736297607422
1996	71.1743087768555
1997	68.410026550293
1998	65.7366790771484
1999	62.8410797119141
2000	60.1739692687988
2001	62.6507110595703
2002	65.1132888793945
2003	65.3540725708008
2004	65.5312576293945
2005	70.5435562133789
2006	61.5736999511719
2007	60.7956008911133
2008	59.9749298095703
2009	59.715259552002
2010	62.2971305847168
2011	64.8591232299805
2012	67.4170608520508
2013	69.9601821899414
2014	63.1088218688965
2015	70.7566299438477
2016	70.1391983032227
2017	70.6615295410156
2018	69.6068496704102
2019	70.9356231689453
2020	70.1828079223633