Year	% of total primary
2000	87.1840667724609
2001	87.0552062988281
2003	87.0557632446289
2004	81.6883010864258
2005	85.38818359375
2006	83.1621322631836
2007	94.5450668334961
2008	95.189826965332
2009	82.579948425293
2010	82.2165222167969
2011	82.4105682373047
2012	83.0370330810547
2013	82.3026962280273
2014	81.9981536865234
2015	82.2015686035156
2016	81.7916030883789
2017	92.6599578857422
2018	92.7803192138672
2019	81.9064102172852
2020	81.7873001098633
2021	81.3013763427734
2022	80.9799423217773