Year % (cumulative) 2006 0 2007 0 2008 0 2009 0 2010 0 2011 0 2012 0 2013 0 2014 13.1971502304077 2015 14.0061197280884 2016 13.4428100585938 2017 13.3521699905396 2018 13.9226980209351 2019 14.1826782226562 2020 14.590950012207 2021 14.7961225509644 2022 15.7001171112061