Year % gross 1993 6.97529983520508 1997 9.207200050354 1999 11.4085998535156 2000 15.8133401870728 2002 31.9901790618896 2011 35.9691581726074 2012 40.196231842041 2013 29.8497905731201 2014 37.3809700012207 2015 28.6159496307373 2016 31.7005405426025 2017 35.2785606384277 2018 34.5211791992188 2019 39.7394790649414