Year	annual %
1961	1.2570190621148356
1962	0.5258454571156932
1963	3.6010589524446033
1964	4.91122936480059
1965	-4.838298869688657
1966	-2.167948110514544
1967	5.46386315785108
1968	1.224834480895737
1969	4.214336665141261
1970	2.8694108322961966
1971	-0.5639872664993391
1972	-2.6976780110749274
1973	1.063903648556888
1974	-0.962386360878341
1975	6.820129861715046
1976	-0.5291592397821887
1977	4.976131679684599
1978	3.420652065808838
1979	-7.178228773527309
1980	4.388602030651612
1981	3.498046966979814
1982	0.8816521378931697
1983	4.878661920328867
1984	1.3556459964542569
1985	2.942993263577705
1986	2.426093136757274
1987	1.5266060302143671
1988	7.024656703196413
1989	3.66147253652332
1990	3.114379507975684
1991	-1.0848063595462918
1992	3.3680743164369034
1993	2.7791999687514846
1994	4.575483115201479
1995	5.453105590565215
1996	5.576850241475896
1997	2.2539469463211788
1998	4.198534403581064
1999	6.834541390743084
2000	1.696176620847666
2001	3.0824472199256263
2002	2.093690540274835
2003	6.00798514528924
2004	6.1312192219441215
2005	6.183053335255082
2006	6.359825725404605
2007	6.473858004123528
2008	1.457106207331151
2009	6.367416339695467
2010	6.483379633271497
2011	4.025675632409161
2012	3.749293426475859
2013	4.937975665417866
2014	6.15477471499122
2015	6.718547578842134
2016	6.994069677888447
2017	5.637504279149681
2018	5.324194138545565
2019	2.9305956346364184
2020	-7.1369032299243
2021	9.01293143229627
2022	6.041765668933323
2023	6.737824744341509