Year	annual %
1981	4.17949497168479
1982	4.9677762388133
1983	2.052760322075571
1984	4.9095602039646025
1985	-0.10677392342319081
1986	1.9309228730980692
1987	5.559696216716972
1988	6.440264732088082
1989	-2.684508035468099
1990	7.620116241386768
1991	-24.303872643440087
1992	-1.3462712498083107
1993	-2.122369659047891
1994	-4.07480328631614
1995	19.10881409673199
1996	4.0203915268652395
1997	-31.935404458135636
1998	-2.102396310945096
1999	7.693190708152457
2000	9.539211291279884
2001	9.840305320474457
2002	8.011628357503724
2003	7.341698143261127
2004	10.301909647553202
2005	8.125924104718123
2006	9.360434517801124
2007	12.315123206518905
2008	4.2197127733163455
2009	-3.645303087191351
2010	3.0421411401767386
2011	2.645033536438362
2012	4.333227795467536
2013	-3.3240301832392305
2014	1.948697217721957
2015	3.476815279997652
2016	2.8851027038971466
2017	3.304924859339309
2018	4.468143876869021
2019	6.708469242245087
2020	0.03580823050337756
2021	9.357417579006338
2022	10.47464037444837
2023	5.963074714769689