Year	% gross
1971	1.38776004314423
1972	1.33413004875183
1973	1.32729995250702
1974	2.06456995010376
1975	2.05707001686096
1976	2.00634002685547
1977	3.30297994613647
1978	3.1211199760437
1979	2.70175004005432
1980	3.22596001625061
1981	4.68036985397339
1982	5.6450400352478
1985	9.23805046081543
1986	8.91201019287109
1987	7.03387022018433
1988	10.3561401367188
1991	15.8705997467041
1992	16.0440902709961
1993	16.5564804077148
1994	15.3262500762939
1995	14.3069496154785
1996	14.0482397079468
1999	16.9030494689941
2003	29.3518600463867
2005	22.4983291625977
2006	19.7194690704346
2011	46.54248046875
2012	47.3633117675781
2013	42.9303894042969
2014	44.1516189575195
2015	43.6383781433105
2016	43.6653099060059
2017	45.1864395141602
2018	48.5386581420898
2019	53.6918601989746
2020	56.6339988708496
2021	70.7630310058594
2022	77.2444915771484