Year	% (cumulative)
2007	2.58243989944458
2012	4.53258466720581
2014	8.45285034179688
2015	9.41679954528809
2016	8.32784748077393
2017	7.21570730209351
2019	7.07531213760376
2020	8.38104248046875
2021	7.12302446365356