Year	Percent
1982	2.97761
1983	6.64031
1984	5.61332
1985	9.76454
1986	5.55078
1987	3.61683
1988	6.86832
1989	5.92693
1990	9.30294
1991	11.133
1992	6.82138
1993	8.68588
1994	3.47732
1995	2.93386
1996	2.65791
1997	2.90856
1998	3.82651
1999	4.42922
2000	4.06313
2001	4.88008
2002	5.05501
2003	4.951
2004	4.25685
2005	3.54035
2006	2.64023
2007	1.4275
2008	1.50386
2009	1.83501
2010	-0.85267
2011	1.4211
2012	0.81336
2013	0.70684
2014	0.66288
2015	0.72581
2016	0.75772
2017	-0.00288
2018	0.95036
2019	0.96473
2020	1.31627
2021	0.62033