Year % gross 1970 31.0358390808105 1971 38.9903907775879 1972 40.670539855957 1974 38.9031295776367 1975 65.4498291015625 1976 74.2025833129883 1977 48.5270309448242 1978 52.9203796386719 1979 54.9533004760742 1980 54.6708488464355 1981 54.9717712402344 1982 54.6700782775879 1985 58.1637687683105 1991 63.2136306762695 1995 65.0963363647461 1998 74.614143371582 1999 75.5619735717773 2000 77.4870681762695 2001 80.3950881958008 2002 81.6404571533203 2003 75.5905075073242 2004 80.2876205444336 2005 81.1055374145508 2006 84.3112411499023 2007 87.0979690551758 2008 88.3145065307617 2009 91.0299987792969 2010 93.3903732299805 2011 94.4829635620117 2012 92.3523178100586 2013 97.9511413574219 2014 96.5062103271484 2015 97.2706298828125 2016 99.2348098754883 2017 98.578857421875 2018 97.3554992675781 2019 97.0131530761719 2020 97.4129180908203 2021 98.8084182739258 2022 99.1047286987305 2023 103.846000671387