Year	% gross
1971	4.93159008026123
1972	4.81183004379272
1973	4.74977016448975
1974	4.95013999938965
1975	6.7263298034668
1976	8.62302017211914
1977	9.36324024200439
1978	9.10966014862061
1979	8.33150005340576
1980	6.70244979858398
1981	5.61541986465454
1982	5.55338001251221
1983	5.89737987518311
1984	6.77023983001709
1985	8.2138500213623
1986	8.76403045654297
1987	9.35004997253418
1988	9.79928970336914
1989	10.7596702575684
1990	12.1269197463989
1991	13.494779586792
1992	14.3108997344971
1993	16.0318298339844
1994	19.4423503875732
1995	19.6950397491455
1997	23.3292407989502
1998	22.6230392456055
1999	23.3463096618652
2001	25.0384502410889
2002	25.9334297180176
2003	29.7210502624512
2004	30.7662506103516
2005	33.2225189208984
2006	37.3102416992188
2007	39.3874015808105
2008	40.7729606628418
2009	46.9404602050781
2010	56.7506217956543
2011	61.516300201416
2012	70.1044998168945
2013	79.6469573974609
2014	86.9976806640625
2015	95.5645065307617
2016	103.71558380127
2017	110.534072875977
2018	115.462463378906
2019	117.005470275879
2020	118.883682250977
2021	125.763786315918