Year % gross 2001 41.498779296875 2002 39.5910987854004 2003 44.9195709228516 2004 46.7724189758301 2005 50.3022689819336 2006 53.1555099487305 2007 54.7166290283203 2008 56.0213203430176 2009 57.0816688537598 2010 56.1416397094727 2011 59.4594306945801 2012 61.7586097717285 2013 64.9605407714844 2014 66.4186706542969 2015 67.7083587646484 2016 71.7706832885742 2017 78.0845413208008 2018 79.6375198364258 2019 80.6800537109375 2020 80.4139862060547 2021 81.9118118286133 2022 79.125846862793