Year	% gross
2007	81.035530090332
2008	85.0679168701172
2009	86.3446578979492
2010	83.7172470092773
2011	84.51416015625
2012	85.3761291503906
2013	84.7301177978516
2014	84.6013412475586
2015	83.0699996948242
2016	82.9606018066406
2017	84.2743606567383
2018	86.1026916503906
2019	85.8158111572266
2020	85.2992401123047
2021	84.969841003418
2022	85.2915191650391
2023	83.8960037231445