Year % gross 2004 24.5683898925781 2005 27.218240737915 2006 27.3539791107178 2007 30.778169631958 2008 34.0214385986328 2009 32.6693000793457 2010 32.7131309509277 2011 36.3429794311523 2012 36.0020484924316 2013 33.0224914550781 2014 32.7549095153809 2015 32.6917991638184 2016 46.931770324707 2017 44.8292694091797 2018 41.4166107177734 2019 40.8394813537598 2020 78.3133010864258 2021 77.5858383178711