Year	% gross
2003	95.6367874145508
2004	99.7607727050781
2005	98.8358612060547
2006	99.3781127929688
2007	99.4936676025391
2008	96.0835494995117
2009	98.3493804931641
2010	103.74479675293
2011	95.1443634033203
2012	99.3351135253906
2014	105.686546325684
2015	103.636360168457
2016	102.631576538086
2017	103.066673278809
2018	99.4811935424805
2019	104.582206726074
2020	102.236839294434