Year	% gross
1971	2.11402010917664
1972	2.08533000946045
1973	2.62686991691589
1974	2.82275009155273
1975	3.60361003875732
1976	4.61697006225586
1977	4.36599016189575
1978	6.23339986801147
1979	5.25272989273071
1986	11.224160194397
1987	11.5792503356934
1988	12.5491304397583
1989	13.1131296157837
1990	13.6284103393555
1991	13.6647100448608
1992	12.994460105896
1993	13.2213897705078
1994	13.1807804107666
1995	13.5412702560425
1997	13.7137403488159
1998	10.5485801696777
1999	11.0514497756958
2000	11.6506700515747
2001	11.8629503250122
2002	11.8280696868896
2003	12.2988996505737
2004	12.0566701889038
2005	12.8464498519897
2006	12.849419593811
2007	12.1181802749634
2008	12.8876104354858
2009	13.8179597854614
2010	14.6094903945923
2011	16.4048500061035
2012	19.7667407989502
2013	22.9880199432373
2014	25.9223194122314
2015	29.4633903503418
2016	33.7541007995605
2017	34.4880485534668
2018	36.1169013977051
2019	37.7926902770996
2020	39.2209701538086
2021	40.7997207641602
2022	43.3149681091309