Year	% gross
1989	60.8147315979004
1990	61.3901596069336
1991	60.1944618225098
1992	58.3077812194824
1993	54.9786109924316
1994	49.136890411377
1995	47.8300018310547
1996	46.449390411377
1997	44.2868881225586
1998	41.7864189147949
1999	37.6068496704102
2000	37.0009803771973
2001	37.6161003112793
2002	38.5959892272949
2003	41.0449295043945
2004	41.813549041748
2005	42.9890594482422
2006	44.8266296386719
2007	46.6030082702637
2008	48.7803382873535
2009	50.0535202026367
2010	51.5455017089844
2011	52.9785385131836
2012	54.2802200317383
2013	53.8806610107422
2014	55.0525894165039
2015	55.8691101074219
2016	57.3287086486816
2017	58.3716316223145
2018	59.5278701782227
2019	60.3146514892578
2020	62.5055084228516