Year	annual %
1961	3.6986325101190545
1962	0.5404992905575341
1963	-1.1667368121456434
1964	2.6777834596897634
1965	4.316572673020275
1966	8.245328725207628
1967	-1.6676926249448627
1968	-0.25298551200324937
1969	3.3333699378438553
1970	-4.995198607947941
1971	-0.7863232944210097
1972	6.336935513229818
1973	18.445642950644682
1974	20.334692369158674
1975	3.4880234284685656
1976	4.497085167235127
1977	6.014698711335953
1978	9.697182715518423
1979	8.645577465996396
1980	12.702482790509833
1981	8.372422574351418
1982	5.0578546442461345
1983	3.6491556533808023
1984	1.4478665785963898
1985	2.1772027675002477
1986	1.6531553058300972
1987	4.723213513141246
1988	5.91839654888264
1989	6.116743087073289
1990	5.773182162442822
1991	5.74652378137894
1992	4.490454131254637
1993	6.490654767121896
1994	4.672763546479985
1995	5.740236145627222
1996	4.0981409238428625
1997	4.421168366326782
1998	8.063710456970341
1999	-2.57695297761677
2000	1.3310499593202536
2001	1.917532244930527
2002	1.6904580560415354
2003	2.1495490160916972
2004	3.569259426029973
2005	5.091556183048951
2006	5.104213273029103
2007	2.4733377418903615
2008	5.133780351599611
2009	0.19477213095817092
2010	4.0809892267374295
2011	3.7430981204437046
2012	1.9091444419967445
2013	1.7787458923541664
2014	1.441465365280294
2015	0.7221135734125141
2016	2.63616761998928
2017	1.8999449899776977
2018	1.4285861642072746
2019	1.0144234064249673
2020	-1.29877505741581
2021	1.7710722634539593
2022	4.766995787356535
2023	1.219989389532742