Year	%
1976	33.79505835158392
1977	13.861562262732326
1978	-12.269219666897119
1979	-2.0948676474774066
1980	-5.988132182325772
1981	1.1279847996914005
1982	1.1637738798396038
1983	2.4394732976889872
1984	3.020813216084784
1985	-6.2119269152175605
1986	4.374505693652191
1987	3.3532176789284907
1988	6.837361622711977
1989	6.006888296544369
1990	7.8032155756199195
1991	11.718987352431713
1992	11.050357131298156
1993	13.740969265816373
1994	9.125764687897616
1995	5.455284558775287
1996	-5.1645519304581855
1997	8.853321041998605
1998	7.825648109358402
1999	8.978643048127866
2000	8.998203237704343
2001	9.256955718428548
2002	8.389699357445444
2003	5.884454280424992
2004	5.582355610808532
2005	5.764269119665024
2006	5.466993808578477
2007	5.789111436170504
2008	4.661742569916084
2009	6.146538332349232
2010	4.73612356896119
2011	5.064197685745754
2012	5.343332658731304
2013	5.988693902313706
2014	6.885866277467471
2015	5.5126443159056935
2016	-13.642135640785849
2017	4.276539893693907
2018	3.6343036584822332
2019	5.6895637149322305
2020	4.289186251462599
2021	3.0762157350707704
2022	1.9724805729143982
2023	0.6294612376228008