Year	% gross
1971	11.9989099502563
1972	12.7610702514648
1978	4.79421997070312
1981	4.3221697807312
1983	5.10438013076782
1984	5.76454019546509
1985	6.30606985092163
1986	6.60047006607056
1987	6.81339979171753
1988	7.3299298286438
1989	7.87123012542725
1990	8.22387027740479
1991	8.84414958953857
1992	9.19696998596191
1993	10.9803495407104
1994	10.3690004348755
1995	9.96251010894775
1996	10.8271703720093
1997	12.585599899292
1998	13.4036703109741
1999	14.5365200042725
2000	15.232159614563
2001	15.4916801452637
2002	15.9305896759033
2003	16.3815498352051
2004	19.8219509124756
2005	23.5391502380371
2006	27.7050094604492
2007	32.1192588806152
2008	33.4154510498047
2009	34.2157402038574
2010	45.0025787353516
2011	49.6660118103027
2012	59.5761795043945
2013	65.3152923583984
2014	66.8260116577148
2015	62.9865608215332
2016	59.2744903564453
2017	58.6535110473633
2018	56.6088714599609
2019	62.0760917663574
2020	61.392578125
2021	60.3175811767578
2022	62.731990814209