Year	annual %
1961	5.653577245026312
1962	-1.0098575876183276
1963	-5.314553699129235
1964	10.309727948521967
1965	10.476178506447525
1966	0.7147110387222426
1967	-0.4162922893171128
1968	2.927953573976822
1969	10.539076418384525
1970	-0.04192315187057716
1971	10.760047726338101
1972	-0.8750503880704912
1973	4.721349863023704
1974	5.52614981193922
1975	0.9525746760929792
1976	-3.257088954478789
1977	6.090053455168331
1978	-4.366120646290284
1979	9.932849738641465
1980	1.5143182981029781
1981	-6.576402856630395
1982	-4.18858808256789
1983	4.697060493054224
1984	2.060874852240161
1985	-5.291317238555266
1986	7.075094555922561
1987	2.6033275945161165
1988	-0.8076468002733606
1989	-10.88964395928086
1990	1.6297772074068746
1991	10.407980506747833
1992	9.144385787320843
1993	8.890360973842121
1994	5.660367362656785
1995	-3.198228323784491
1996	5.2926416327475465
1997	8.003034811431405
1998	3.495913589119553
1999	-3.519702135367993
2000	-0.8315292583545073
2001	-4.613779117857817
2002	-13.204426698983013
2003	10.201217138351453
2004	1.0693667159896023
2005	8.670936214704454
2006	17.751104816009473
2007	9.741817422685429
2008	4.162707116417778
2009	-6.490801067586844
2010	9.682699266504244
2011	6.5409308737503835
2012	-0.49066680997012213
2013	2.661781140746328
2014	-2.3930475575254206
2015	2.9266167087727695
2016	-2.4386212715920976
2017	2.3888555811744965
2018	-3.6878901166333407
2019	-2.3071534118305976
2020	-8.68705342858793
2021	11.456634963418551
2022	5.063018927150324
2023	-1.8653652179008873