Year	%
1997	27.7117812659956
1998	27.003983342993
1999	29.7256482130343
2000	20.6107141128837
2001	27.8994247809343
2002	16.6105523584145
2003	7.01192717261951
2004	7.97018852287066
2005	6.026803800032409
2006	6.958156997711069
2007	10.175323338815
2008	11.4609314549311
2009	8.5072630410216
2010	5.13387814410793
2011	8.09534197721733
2012	6.17635929789879
2013	5.7878102190805
2014	9.78593922887054
2015	6.04027512887345
2016	6.24671281550322
2017	6
2019	1.8924
2020	5.469
2021	3.3546
2022	5.0846