Year % gross 1972 0.220520004630089 1973 0.363000005483627 1988 78.3368377685547 1998 21.8045501708984 1999 19.0422592163086 2000 17.6519107818604 2001 17.0126304626465 2002 14.6602802276611 2003 11.9550199508667 2004 11.3997602462769 2005 11.3685102462769 2009 11.2207899093628 2010 13.1162204742432 2011 25.6004524230957 2013 32.8370094299316 2015 32.3571319580078 2016 35.5150527954102 2017 41.7395820617676 2018 40.8181610107422 2020 45.5989532470703 2021 36.380687713623