Year	% gross
1971	94.2706832885742
1972	101.696502685547
1973	106.064147949219
1974	106.940101623535
1975	109.52668762207
1976	113.26579284668
1977	114.705917358398
1978	114.368659973145
1979	124.389183044434
1980	124.786468505859
1981	124.606262207031
1983	126.055183410645
1986	117.236640930176
1999	114.561042785645
2001	108.625068664551
2002	106.845970153809
2003	105.594276428223
2004	106.58975982666
2005	101.798553466797
2006	106.919326782227