Year	% gross
1970	59.0554695129395
1971	59.138671875
1972	60.8132019042969
1973	63.226390838623
1974	63.5806694030762
1975	64.861442565918
1976	65.6018829345703
1977	68.069091796875
1978	67.7214813232422
1979	69.0143280029297
1980	70.8202896118164
1981	72.5210494995117
1982	73.9232788085938
1983	74.8571472167969
1984	75.8786087036133
1985	75.7466430664062
1986	76.4475021362305
1987	75.87451171875
1988	77.1689224243164
1989	78.1524963378906
1990	78.2102203369141
1991	79.3188323974609
1992	80.2306289672852
1993	82.2459716796875
1994	83.4729995727539
1995	82.9902420043945
1996	82.8685073852539
1997	83.8379211425781
1998	83.8735961914062
1999	84.5343475341797
2000	86.1865997314453
2001	86.5294036865234
2002	87.7601928710938
2003	94.1611404418945
2004	95.8713989257812
2005	97.4062118530273
2006	98.3815536499023
2007	99.3174667358398
2008	99.4559326171875
2009	99.3964309692383
2010	99.482551574707
2011	99.5414276123047
2012	101.15421295166
2013	103.865196228027
2014	102.729888916016
2015	102.95401763916
2016	106.307548522949
2017	105.355751037598
2018	96.9930419921875
2019	97.0935134887695
2020	98.046012878418
2021	98.4122467041016
2022	101.115142822266