Year % of commercial profits 2005 18.527027027027028 2006 17.181578947368422 2007 16.905263157894737 2008 16.87105263157895 2009 16.7 2010 16.27631578947369 2011 16.91052631578948 2012 17.347368421052632 2013 17.176315789473684 2014 16.35 2015 16.8 2016 16.94736842105263 2017 16.92105263157895 2018 16.8078947368421 2019 16.865789473684206