Year	annual %
1981	-1.0601317092778544
1982	-4.24100609574289
1983	-4.634600905060921
1984	-1.112361392314682
1985	-1.9275671520359907
1986	4.101893584074418
1987	8.631295966467192
1988	7.572440261303285
1989	9.824406755032626
1990	7.951798849671604
1991	9.400038290404595
1992	9.81282523635872
1993	3.632382261581867
1994	-3.2358538718442134
1995	-1.167716499740564
1996	-2.300505188163015
1997	1.575556150401141
1998	-0.6643983878367408
1999	5.067886324379728
2000	7.860490852339382
2001	0.5234336732489027
2002	2.5910515559518075
2003	5.111353150141923
2004	0.14405797709773083
2005	-0.12180138646469629
2006	1.407689968231665
2007	-1.2707559652179867
2008	-4.474533834345522
2009	1.4181008077565025
2010	-3.8761515784025704
2011	-0.009649126995356028
2012	0.2795501071220343
2013	2.6697121908276387
2014	1.0940187989461947
2015	3.288780602107707
2016	-2.7454077271939923
2017	-4.464599742907822
2018	-2.250864353482811
2019	2.310551096039987
2020	-11.184514500215585
2021	16.032494386848256
2022	5.709608999873211
2023	4.362269523063006