Year	%
1999	11.19
2000	19.69
2001	11.18
2002	62.6
2004	4.66
2005	6.02
2006	5.4
2007	6.42
2014	4.46
2015	5.1
2016	5.09
2017	7.62
2018	63.47
2019	7.46
2020	6.25