Year % of commercial profits 2005 14.402702702702703 2006 14.07631578947368 2007 14.07631578947368 2008 14.07631578947368 2009 14.065789473684207 2010 14.265789473684208 2011 14.776315789473685 2012 14.944736842105263 2013 15.142105263157896 2014 15.531578947368422 2015 15.555263157894737 2016 15.631578947368421 2017 15.668421052631578 2018 15.686842105263159 2019 15.944736842105266