Year	% gross
1979	9.51786994934082
1980	11.708589553833
1981	13.5888500213623
2006	45.1279296875
2007	42.5956687927246
2008	41.6808586120605
2009	56.0849609375
2010	49.3927116394043
2011	51.3937301635742
2012	50.0885009765625
2013	50.5173492431641
2014	45.2711181640625
2015	44.0811004638672
2017	27.8481006622314
2018	26.5950698852539
2023	20.3681697845459