Year	%
1992	1.755999
1996	0.9860568
1997	0.9861251
1998	0.9861251
1999	1.026734
2000	0.9940699
2001	1.103844
2002	1.134987
2003	0.8580622
2004	0.8501844
2005	0.7228095
2006	0.9676629
2007	0.8210339
2008	0.4533839
2009	0.6545289
2010	0.6652151
2011	0.4760981
2014	0
2016	0.451826
2017	0.2350456
2018	0.324158
2019	0.3289297
2020	0.323555
2021	0.2374015