Year % gross 1993 22.6224498748779 1994 22.8836898803711 1995 24.2651691436768 1996 25.6243190765381 1997 25.7138900756836 1998 25.1351299285889 1999 26.6298198699951 2000 28.6608695983887 2001 29.1971797943115 2002 29.0383205413818 2003 29.9987697601318 2004 31.3759593963623 2005 32.0580596923828 2006 34.0940704345703 2007 37.340950012207 2008 21.6835708618164 2009 22.5143795013428 2010 23.8957901000977 2011 25.0117092132568 2012 28.2030391693115 2013 30.7238597869873 2014 33.6151313781738 2015 35.7062301635742 2017 40.434398651123 2018 41.4032096862793 2019 41.5561294555664 2020 30.4463996887207