Year	% gross
1985	5.07186985015869
1986	5.25183010101318
1987	5.02184009552002
1988	5.7943902015686
1989	6.26947021484375
1999	6.73332977294922
2003	11.3738098144531
2004	11.5379400253296
2005	12.2558498382568
2010	11.0296802520752
2011	11.9808502197266
2017	12.9340000152588
2018	13.6540002822876
