Year	%
1997	9.588412692819068
1998	6.448926427831612
1999	13.775603638592592
2000	13.153175059388628
2001	26.02784521419847
2002	9.763381368204836
2003	10.057408333261144
2004	7.344549242022749
2005	6.9698180572498565
2006	7.411952972115108
2007	5.341266302437696
2008	3.6415923424635626
2009	9.892832098595127
2010	7.80319865201804
2011	6.113829831665669
2012	9.778618455128806
2013	9.906354067843337
2014	10.609555382715763
2015	10.75584871205768
2016	10.120494231036218
2017	11.112023924021717
2018	11.505416876403235
2019	8.859152324995062
2020	9.382975821656597
2021	9.244983675288687
2022	5.365090341611672
2023	6.708498783580278