Year % of commercial profits 2005 33.018181818181816 2006 32.78181818181818 2007 31.727272727272723 2008 31.609090909090913 2009 30.818181818181817 2010 30.05454545454545 2011 29.69090909090909 2012 29.8 2013 29.654545454545453 2014 29.590909090909086 2015 29.56363636363636 2016 29.227272727272723 2017 29.236363636363627 2018 28.827272727272724 2019 26.609090909090913