Year	%
1999	13.94
2000	19.52
2001	8.41
2002	10.28
2004	7.11
2005	8.78
2006	6.35
2007	7.72
2014	5.88
2015	5.86
2016	5.3
2017	3.46
2018	5.01
2019	4.97
2020	5.08