Year	% gross
1971	31.4248504638672
1972	46.4078407287598
1977	50.0209503173828
1978	52.738899230957
1984	54.9077186584473
1987	59.3761291503906
1988	60.8187103271484
1994	63.289379119873
1995	69.3863067626953
1996	64.1467895507813
1997	69.5839920043945
1998	67.7598037719727
1999	71.9444427490234
2001	91.5422897338867
2002	76.2959213256836
2003	85.6710433959961
2004	82.5075836181641
2005	85.7590026855469
2007	94.7744827270508
2008	108.883827209473
2009	107.556083679199
2010	107.767578125
2011	108.462966918945
2013	104.185020446777
2014	100.208992004395
2015	94.7894668579102
2016	96.6075210571289
2017	95.6955413818359
2018	98.7779006958008
2020	133.725280761719