Year	% gross
1970	1.34660995006561
1971	1.48678994178772
1994	51.7028198242188
1995	54.7736015319824
1996	57.9703216552734
1997	68.0959091186523
1998	36.0104217529297
1999	42.3066291809082
2000	54.2530708312988
2001	64.0948333740234
2002	66.5734786987305
2003	72.5271530151367
2004	73.0621185302734
2018	78.6036529541016
2019	72.9823608398438