Year annual % 2009 4.191227957559946 2010 4.594713085886909 2011 5.0370404160202185 2012 5.535752509081632 2013 6.0024057156778525 2014 8.60939861812939 2015 5.66834746918137 2016 5.103400397021545 2017 5.034838557998597 2018 5.147689114539219 2019 4.832836089763433 2020 1.2165061948195728 2021 4.411792736362457 2022 4.419901250737041