Year	% gross
1972	11.1721801757812
1987	15.1415195465088
1988	16.3299293518066
1989	17.1598205566406
1990	18.7275104522705
1994	24.7403202056885
2001	59.2259712219238
2002	63.5760498046875
2003	63.5513496398926
2004	63.0695114135742
2005	65.8080825805664
2006	74.6890411376953
2007	72.6097412109375
2008	76.9928588867188
2009	73.5895919799805
2010	75.7400283813477
2011	78.1483993530273
2012	78.9795532226562
2013	82.2925796508789
2014	81.4608993530273
2015	82.3581314086914
2016	82.9498519897461
2017	82.5109634399414
2018	78.5934524536133
2019	80.0130310058594
2020	83.4810409545898
2021	82.4176177978516
