Year	%
1999	27.82277
2000	42.1483
2001	12.47632
2002	17.77589
2004	12.12254
2005	17.31325
2006	10.38684
2007	17.55375
2014	10.84327
2015	10.90378
2016	10.94602
2017	8.075899
2018	9.735646
2019	9.064999
2020	10.19092