Year	%
1975	8.05258919689896
1976	9.67741935483871
1977	5.29529112304736
1978	8.9768401522664
1993	16.471868200186503
1994	15.429896539422
1995	6.05302509359617
1996	10.9554264339972
1997	6.33801564429807
1998	5.84845194943925
1999	8.132210383180851
2000	16.7152320759539
2001	21.2335596729005
2002	14.8045671294564
2003	14.206236746287901
2004	26.426241807005702
2005	19.7525700997414
2006	12.9809569599869
2007	18.5642888084109
2008	30.008821106442202
2009	28.7046026648626
2010	19.606200352902402
2011	13.4553899466475
2012	16.551751043318
2013	12.8134310291589
2014	20.032819366169598
2015	9.44313439051108
2016	16.776318010514498
2017	10.8083914988029
2018	20.4489
2019	25.2808742
2020	11.451706
2021	15.868776
2022	14.6894703
