Year	% gross
1981	120.499938964844
1986	121.871841430664
1989	114.739463806152
1990	114.964233398438
1991	117.103813171387
1992	117.342239379883
1993	116.385948181152
1994	113.716270446777
1995	94.6112899780273
1996	94.8656005859375
1997	94.942626953125
1998	95.2110137939453
1999	97.8677368164062
2000	98.0913772583008
2001	99.931396484375
2002	100.623916625977
2003	101.23616027832
2004	102.333023071289
2005	101.975433349609
2006	101.16813659668
2007	101.430480957031
2008	103.332176208496
2009	103.094879150391
2010	103.275779724121
2011	103.814361572266
2012	102.177581787109
2013	101.403259277344
2014	100.797012329102
2015	100.50122833252
2016	100.174667358398
2017	100.884269714355
2018	100.529808044434
2019	101.622047424316
2020	101.783996582031
2021	100.474998474121
2022	100.911003112793
2023	100.523002624512