Year % (cumulative) 2007 0.157916218042374 2009 0.54113632440567 2010 0.530093431472778 2011 0.40985244512558 2012 0.312984943389893 2013 0.553268849849701 2018 13.832106590271 2019 18.6028232574463 2020 18.6386528015137 2021 20.4311218261719