Year	%
1993	15.71046
1999	6.817972
2000	6.522439
2001	3.207629
2002	2.984704
2003	2.675101
2004	1.188151
2005	2.280585
2006	2.571407
2007	1.649115
2008	2.365027
2009	3.05211
2011	2.44339
2012	1.187552
2013	1.335296
2014	1.397532
2015	1.989235
2016	1.914098
2017	1.563224
2021	1.339786