Year % gross 1992 30.6611194610596 1993 34.6100692749023 1994 37.610221862793 1995 41.2453117370605 1996 43.9796485900879 1997 45.7116394042969 2013 58.6926918029785 2014 63.3634490966797 2015 67.3877105712891 2016 68.8629608154297 2017 69.9681015014648 2018 71.1426391601562 2019 74.196891784668 2020 74.7936019897461 2021 78.7855529785156