Year	% of tax revenue
2007	1.3356937993350086
2008	0.16569033768300723
2009	0.07265427716171317
2013	0.24896454863250353
2014	0.3688485169151398
2015	0.4699413417721092
2016	1.1417920449522458
2017	1.9052423682096202
2018	1.4145948695557324
2019	0.7255138081942759
2020	0.43215217672780815
2021	0.8992245207870675
2022	0.5609586340903816