Year	annual %
1971	2.4821397615646674
1972	5.036327955599901
1973	4.048405549755117
1974	-1.376431867185616
1975	1.3325959286964064
1976	4.504719704630574
1977	3.0592431562426583
1978	3.180523813491945
1979	1.2583413324212387
1980	-1.1494262791970442
1981	0.3578458690625581
1982	0.18056157214051893
1983	4.466524037123236
1984	4.24704201900488
1985	4.227767080054548
1986	3.114986764409494
1987	2.4582126665169284
1988	3.1921716458371208
1989	1.8960082998627854
1990	0.7864337458129569
1991	-1.227077310558883
1992	2.130512572096933
1993	2.0439742425874243
1994	2.5582741840847802
1995	1.702464454146721
1996	2.2532944617526454
1997	2.6163073087277695
1998	3.9603676537354175
1999	4.1219625334659895
2000	3.832984930604667
2001	1.4530812344390114
2002	1.6695801636869874
2003	2.251266291901672
2004	2.7695531737990393
2005	2.6126678491610704
2006	1.9852633269174618
2007	1.583200470209107
2008	-0.6256789350023837
2009	-2.1019792101159425
2010	1.1472659023175993
2011	0.9792243787749157
2012	0.6272280636894436
2013	1.0652997759311091
2014	2.0344137855590247
2015	2.5394642854787577
2016	1.650944688100651
2017	2.0015107766774776
2018	2.0993890894547462
2019	1.4046352056137295
2020	-3.7274598674250825
2021	7.973602246810913
2022	2.165159495471599