Year % (cumulative) 2006 0 2007 0 2008 0 2009 0 2010 0 2011 0 2012 0 2013 0 2014 10.9788799285889 2015 11.353289604187 2016 11.5793895721436 2017 11.8324203491211 2018 12.6008768081665 2019 12.20458984375 2020 12.8527269363403 2021 13.0818529129028 2022 12.9324808120728