Year % (cumulative) 2005 8.74642276763916 2006 17.554370880127 2007 8.22597408294678 2008 17.0061206817627 2009 8.52817821502686 2010 19.4055805206299 2011 8.47860717773438 2012 21.0661201477051 2013 21.954870223999 2014 22.265510559082 2015 7.64774131774902 2016 23.2162094116211 2017 0 2018 22.4547462463379 2019 23.2282104492188 2020 23.1154899597168 2021 23.5979194641113 2022 23.9969825744629