Year	% of tax revenue
2001	0.001303167954570423
2002	4.755177544301731E-06
2007	8.88746563226243E-05
2011	0.001571374336565755
2012	0.07063082059761067
2013	0.027835568197840065
2014	0.0028871505082763834
2015	0.00303528616425663
2016	0.019751655847148518
2017	0.01330586160711074
2018	0.016602907027886072
2019	0.05081291853287074
2020	0.03486325306811493
2021	0.000218306036918069