Year	% gross
1971	2.81714010238647
1972	3.34932994842529
1973	3.83590006828308
1974	3.95464992523193
1975	4.19314002990723
1976	4.53473997116089
1977	4.45428991317749
1978	4.50555992126465
1995	17.1047191619873
1996	18.8335304260254
1999	19.2394008636475
2000	19.4013805389404
2001	20.267749786377
2002	19.091869354248
2003	20.3405609130859
2004	22.3207702636719
2005	23.579309463501
2006	26.3164196014404
2007	31.0405597686768
2008	37.6419410705566
2009	37.8410415649414
2010	43.6247711181641
2011	48.5700302124023
2012	54.0766487121582
2013	56.620189666748
2014	64.9739227294922
2015	72.1212768554688
2016	69.1833267211914
2017	68.1274108886719
2018	62.7104682922363
2019	59.9513702392578
2020	57.3403282165527
2021	55.7980690002441
2022	60.6945381164551