Year	% of total primary
2010	1.21582996845245
2011	1.52128994464874
2012	1.21353995800018
2013	1.31853997707367
2014	1.51159000396729
2015	1.60979998111725
2016	1.59384000301361
2017	1.7079199552536
2018	1.6074800491333
2020	1.9240700006485
2021	1.90262997150421
2022	2.00940990447998