Year	% gross
1970	0.117940001189709
1974	0.533159971237183
1975	0.546339988708496
1979	0.683089971542358
1981	0.576020002365112
1982	0.62006002664566
1988	1.14972996711731
1989	1.11764001846313
1998	1.51284003257751
1999	1.50294995307922
2011	2.2041699886322
2012	3.41591000556946