Year	%
1999	11.19
2000	19.69
2001	11.18
2002	62.01
2004	4.66
2005	6.02
2006	3.67
2007	4.03
2014	2.79
2015	3.03
2016	2.74
2017	5.6
2018	0.76
2019	4.48
2020	3.69