Year	annual %
1981	4.5511442294511255
1982	2.032294164145142
1983	3.172520881908355
1984	3.1548073657987175
1985	2.684953395478786
1986	4.235241268282081
1987	5.89861249442032
1988	10.820090846544844
1989	-2.151690705158586
1990	-7.4632076536532
1991	-7.534068849206605
1992	-6.271263864810479
1993	-0.6912135576505563
1994	2.1643588682235873
1995	3.3211867662132306
1996	5.749369998721335
1997	-13.590922650635576
1998	4.484024950725413
1999	-7.88107451828138
2000	5.105057144383025
2001	5.911159905995646
2002	8.195214830768123
2003	6.074062358892746
2004	7.317404813861472
2005	7.8655023126151775
2006	7.616849851371072
2007	7.441488603196362
2008	6.877126879931183
2009	-2.722415576434443
2010	2.2260786772168046
2011	2.746910765336679
2012	1.33406600038019
2013	0.01541884674132632
2014	1.5248681107659507
2015	4.0594114079006545
2016	3.7517787845785335
2017	3.499175548579103
2018	3.4391300631909445
2019	4.770081952640211
2020	-3.3879876659231627
2021	8.542609991878166
2022	10.559716540161261
2023	2.3964076105220187