Year % of commercial profits 2005 29 2006 28.6 2007 29 2008 28.5 2009 29.5 2010 29.5 2011 29.5 2012 28.6 2013 22.7 2014 19.8 2015 19.6 2016 22.4 2017 22.6 2018 22.2 2019 22.2