Year % gross 2000 93.3721389770508 2001 93.4450607299805 2002 96.9152069091797 2003 97.5562286376953 2004 96.2935333251953 2005 94.0052337646484 2006 93.1404724121094 2007 92.9139404296875 2008 92.3691635131836 2009 91.9261779785156 2010 91.440803527832 2011 92.8256225585938 2012 95.2998504638672 2013 98.3116912841797 2014 99.4167327880859 2015 99.7783126831055 2016 99.1193084716797 2017 100.332550048828 2018 100.253517150879 2019 100.850433349609 2020 101.427406311035 2021 102.499496459961