Year	%
1992	0.9376121
1993	1.344909
1996	1.470988
1997	1.474839
1998	1.735693
1999	1.655326
2000	1.716806
2001	0.6819374
2002	1.087815
2003	0.9910108
2004	1.872492
2005	2.448884
2006	0.9147117
2007	0.8125971
2008	0.880654
2009	0.8643473
2010	1.131143
2011	0.8696364
2012	0.8847075
2013	0.7582263
2014	0
2015	0.7403957
2016	0.7359968
2017	0.7591661
2019	0.7217026
2020	0.7145606
2021	0.6237628