Year	%
1993	30.19
1997	15.64
2000	23.65
2001	22.23
2002	22.04
2003	25.38
2005	11.99
2006	10.89
2007	11.53
2008	9.9
2009	10.43
2010	13.56
2011	13.19
2012	5.89
2014	4.25
2015	5.73
2016	6.95
2017	8.74
2019	7.61
2020	7.66
2021	7.37