Year % (cumulative) 2006 0.093151219189167 2007 0.0860486626625061 2008 0.0770885944366455 2009 0.0724132806062698 2010 0.048380184918642 2011 0 2012 0.0647354647517204 2013 0.0709681436419487 2014 13.0140800476074 2015 14.0779943466187 2016 14.2660112380981 2017 14.3637037277222 2018 14.5098524093628 2019 14.786021232605 2020 15.137565612793 2021 13.9771289825439 2022 15.2834615707397