Year % of commercial profits 2005 49.5 2006 49.4 2007 49.3 2008 49.2 2009 49 2010 49.2 2011 49.2 2012 49.6 2013 49.1 2014 49.5 2015 49.4 2016 48.9 2017 46.2 2018 46.2 2019 44.5