Year	% gross
1981	5.94796991348267
1982	6.3361701965332
1983	6.7226300239563
1984	6.52921009063721
1985	6.21534013748169
1986	5.83111000061035
1987	7.25419998168945
1988	7.94494009017944
1989	8.79360008239746
1990	9.60418033599854
2002	11.2761201858521
2021	8.80173969268799