Year % gross 2003 106.175201416016 2004 109.152221679688 2005 105.754722595215 2006 107.511962890625 2007 107.112167358398 2008 105.525672912598 2009 105.751121520996 2010 105.459182739258 2011 104.950500488281 2012 103.828002929688 2014 102.660987854004 2015 105.665420532227 2016 105.491020202637 2017 104.699737548828 2018 106.329788208008 2019 103.830009460449 2020 102.913627624512 2021 102.110137939453