Year % gross 1995 4.42247009277344 1999 3.2977499961853 2000 3.29911994934082 2001 3.30599999427795 2005 7.38944005966187 2006 7.92458009719849 2007 8.15056991577148 2008 8.4527702331543 2009 9.35235977172852 2010 8.40530967712402 2011 10.3864498138428 2013 11.942910194397 2014 13.389289855957 2015 17.3661594390869 2016 27.2884502410889 2017 35.8883209228516 2018 37.8178596496582 2019 38.1519889831543