Year % gross 1999 11.4620599746704 2000 11.7145500183105 2001 11.9241399765015 2002 12.2934398651123 2003 12.1730899810791 2004 12.4153299331665 2005 8.21560001373291 2006 8.36802005767822 2007 8.31480979919434 2008 8.17119026184082 2009 8.19760990142822 2010 7.00500011444092 2011 6.92000007629395 2012 6.01800012588501 2013 6.07399988174438 2014 6.21799993515015 2015 6.34999990463257 2016 6.63700008392334 2017 6.90500020980835 2018 8.30200004577637 2019 10.7510004043579 2020 15.2370004653931 2021 20.2029991149902 2022 29.3369998931885 2023 39.867000579834