Year	annual %
1985	18.401486988847584
1986	11.30519380016362
1987	2.655939610647596
1988	7.314666099038257
1989	2.427105685486052
1990	3.557910673732021
1991	4.044267645858833
1992	-5.287322516870089
1993	0.9160384356616695
1994	3.6582447263154294
1995	5.278868036544741
1996	-7.407697488995756
1997	-4.5491456606327185
1998	-4.108399354850144
1999	-3.8482154409182483
2000	1.128390457699775
2001	7.529273114355231
2002	15.685446092382755
2003	17.75540057547053
2004	13.880517700597652
2005	11.351110074018532
2006	11.609532253696855
2007	8.22643082330746
2008	21.05657332843745
2009	17.00957128842471
2010	12.200168944539243
2011	-4.466900882575787
2012	15.04417919994579
2013	6.93626054670204
2014	6.487673948861161
2015	19.02503160863822
2016	8.765866154999015
2017	21.918808466177715
2018	-5.582255562539185
2019	8.780660012077371
2020	19.379237787863953
2021	5.295580515348387
2022	-1.6890758902645182
2023	7.675893684996595