Year % gross 1970 5.96661996841431 1971 7.26250982284546 1972 7.92589998245239 1973 8.49736022949219 1974 9.70223045349121 1979 11.3801298141479 1980 11.6975202560425 1983 11.0195999145508 1988 10.4117698669434 1989 10.3057203292847 1990 10.2409696578979 1991 10.8289003372192 1992 10.4341096878052 1993 10.5250701904297 1994 10.6472301483154 1998 12.0697202682495 1999 12.9905796051025 2012 36.8341293334961 2013 37.7301788330078 2014 40.0069999694824 2015 41.4925117492676 2016 41.0847091674805 2017 42.8086891174316 2018 43.5052108764648 2019 44.4464302062988 2020 45.056999206543 2021 46.3517417907715 2022 49.1480598449707