Year	annual %
1982	-13.9412715844937
1983	-24.8208652442354
1984	3.3247477602139
1985	19.6863506063178
1986	-11.6798969117308
1987	-8.04019772581819
1988	4.20200360049184
1989	-9.98850571649044
1990	20.6658077258765
1991	3.2456804302027
1992	14.0162652969208
1993	-10.5125970649512
1994	-12.0722747971001
1995	2.37762975977603
1996	17.0336717459693
1997	-5.62047844665217
1998	-2.78576811765386
1999	-10.7938146514443
2000	-0.747950826471182
2001	55.4341586647441
2002	12.3521566180195
2003	7.99270454529545
2004	-2.30608886831746
2005	9.87461848584653
2006	-15.9404894018381
2007	31.0871645279893
2008	-18.175339206418
2009	19.0692124834283
2010	-0.942112716341583
2011	-5.61777688751768
2012	-2.63978574275561
2013	17.8671912387919
2014	-2.03225929856345
2015	-2.92184565925909
2016	-6.54369550274455
2017	-3.50188680287192