Year	annual %
1961	1.86366218020763
1962	1.9293521483645282
1963	1.8959053310336906
1964	1.782126860707239
1965	1.6295624916652092
1966	1.4086419342740246
1967	1.3659113309192776
1968	1.282013484104443
1969	1.1350812505821426
1970	0.9917205409440343
1971	1.120346055735367
1972	1.1732973063688994
1973	1.138806955494036
1974	1.0581688163448184
1975	0.9295393906024015
1976	1.2027138685678795
1977	1.4311681673831678
1978	1.428373361533174
1979	1.3490403057488378
1980	1.313018807275435
1981	-0.5333870015130294
1982	-1.2248415421711822
1983	-1.1687390245543066
1984	-1.3530075355362674
1985	-1.546181613130236
1986	-1.0570200921517152
1987	-0.9088487123705189
1988	-1.027000957843411
1989	-1.118816247785894
1990	-1.2528765998452567
1991	-0.0942299977593735
1992	0.3940604387309594
1993	0.3805756775068349
1994	0.37143114877618966
1995	0.29502850249649887
1996	0.24356930264569127
1997	0.1998231356087451
1998	0.12885392539220653
1999	0.06134788989335565
2000	-0.0005352595244494544
2001	-0.22956289496341664
2002	-0.44730188472554067
2003	-0.5401385875284233
2004	-0.5198433180927602
2005	-0.5466795362569001
2006	-0.6183928935486371
2007	-1.1329823075639942
2008	-0.6856454562253225
2009	-0.582895955714549
2010	-0.46251173768004883
2011	-0.5297658769268114
2012	-0.7456947564427893
2013	-0.7230386318586959
2014	-0.6586257193613014
2015	-0.669256386273447
2016	-0.6563594780971762
2017	-0.6946421980186552
2018	-0.6339955122479485
2019	-0.5489558024810987
2020	-0.9979813101325936
2021	-1.0504840804107685
2022	-0.9676849923374783
2023	-1.5314488978134886