Year	%
1999	12.88
2000	16.5
2001	6.84
2002	7.01
2004	6.14
2005	6.61
2006	6.08
2007	6.87
2014	5.88
2015	6.08
2016	6.1
2017	6.51
2018	7.09
2019	6.05
2020	5.65