Year	annual %
1961	-0.25912508965559766
1962	1.1095209317897599
1963	0.4812395083129388
1964	0.3993523053502628
1965	-2.9121256974564176
1966	0.26111923345976606
1967	-15.589185783939584
1968	8.184683666427702
1969	-0.8551069436983738
1970	-1.3354598928201966
1971	6.362767915347561
1972	-4.188215316772386
1973	-3.25970474059757
1974	6.367625171647802
1975	13.835469425527691
1976	-9.688900905713567
1977	16.669711482329546
1978	8.11218799415883
1979	4.509029466851146
1980	-17.03827572620081
1981	14.431025368437261
1982	11.26010116403711
1983	-2.8213983588532585
1984	-2.219275465769087
1985	2.629518115902357
1986	20.308714613204742
1987	1.3584172680103137
1988	-14.466442701146363
1989	-15.913108775738976
1990	-5.046629175222421
1991	-5.290432573168985
1992	-12.466919224048723
1993	12.740018996276234
1994	1.4785343018788097
1995	-2.1548265538705635
1996	2.6294391576516745
1997	4.966373450031597
1998	3.5594230871869144
1999	3.2923517469200902
2000	4.418185658596414
2001	2.4142843121465916
2002	1.1936381655152815
2003	3.9855865163576283
2004	2.98663378673308
2005	2.5837170078280423
2006	-0.15076986234858225
2007	-0.6828927576182764
2008	2.3762871714055933
2009	1.648010323544355
2010	-1.2435593666789089
2011	0.44022613921343634
2012	2.2471828471303894
2013	2.8103609311137348
2014	2.531697482140686
2015	3.1425193542187912
2016	-0.6183529425716046
2017	1.776643819824855
2018	2.257173409457991
2019	1.2049098583397466
2020	-2.426688735560191
2021	2.006803206447799
2022	1.4973774705433982
2023	0.34782044498993514