Year % (cumulative) 2007 34.2319488525391 2008 36.8616981506348 2009 35.632740020752 2012 49.9084167480469 2014 22.866979598999 2015 22.5105209350586 2016 55.5138931274414 2017 45.8778953552246 2019 40.4709091186523 2020 46.8204078674316 2021 43.2093391418457