Year % of profit 2005 71.3 2006 71.3 2007 71.3 2008 43 2009 41.9 2010 41.9 2011 41.9 2012 41.9 2013 41.8 2014 41.8 2015 41.8 2016 41.8 2017 41.8 2018 41.8 2019 41.8