Year	% gross
1989	115.52774810791
1990	95.422248840332
1991	94.2280883789062
1992	93.8603363037109
1993	86.4396820068359
1994	81.6044998168945
1995	81.1921234130859
1996	87.5025863647461
1997	94.2496719360352
1998	98.6216201782227
1999	100.520660400391
2000	100.62963104248
2001	102.168823242188
2002	102.557670593262
2003	103.390739440918
2004	103.993263244629
2005	103.547149658203
2006	103.065879821777
2007	102.424537658691
2008	101.714302062988
2009	101.350631713867
2010	101.942497253418
2011	101.513732910156
2012	100.536979675293
2013	100.057746887207
2014	99.7765884399414
2015	99.430793762207
2016	99.2382736206055
2017	99.4659881591797
2018	99.8606491088867
2019	100.005088806152
2020	99.8990783691406
2021	99.7919006347656
2022	99.4768676757812