Year	%
2007	40.25795
2008	38.34381
2009	32.7696
2010	28.74498
2011	29.08147
2012	21.88579
2013	23.31197
2014	22.1905
2015	22.35628
2016	17.10906
2017	18.81319
2018	14.15024
2019	15.06674
2020	6.831725
2021	21.38675