Year % gross 1970 3.93013000488281 1973 4.33644008636475 1988 8.98441028594971 1989 9.72815990447998 1990 10.0546197891235 1991 10.8662099838257 1992 11.9291000366211 1993 14.1615800857544 1994 16.6343307495117 2010 16.5820007324219 2011 17.613000869751 2012 17.2647495269775 2013 18.0946197509766 2014 18.138879776001 2015 18.8556098937988 2016 18.9649791717529 2017 21.4171295166016 2018 23.3899803161621 2019 24.0192794799805 2020 25.1296806335449 2021 25.3566093444824