Year	annual %
1961	1.6699500037781465
1962	1.771951220800241
1963	1.322342624207326
1964	0.7794572611257911
1965	0.7101746617203295
1966	0.6207070958086714
1967	0.5716077926437497
1968	0.5398645077218378
1969	0.5150945262865987
1970	0.5258237088617884
1971	0.6345063950622666
1972	0.8140958800098458
1973	0.9468245251447115
1974	0.9209393603712231
1975	1.5115461849243201
1976	1.418298222418889
1977	1.2297915454628574
1978	1.0936005428202353
1979	0.9179898796110503
1980	0.760612495119356
1981	0.60811857550116
1982	0.43359928788899926
1983	0.3113996196180882
1984	0.1634207843326442
1985	0.0051619812716634
1986	-0.1906310890266116
1987	1.724245490017208
1988	1.6285139653383338
1989	1.5373602043426458
1990	1.4056523516533166
1991	1.2069612048987437
1992	0.9002040848552859
1993	1.693701130410448
1994	1.7576835504867598
1995	1.6752629169441258
1996	1.5915149626754554
1997	1.5542444137479066
1998	1.505820244514402
1999	1.4530138301624551
2000	1.3825637719421113
2001	1.325740814406859
2002	1.2585406913905148
2003	1.1505164406868096
2004	1.0259406902402837
2005	1.8864617880082701
2006	2.768833563594573
2007	2.7357007739105885
2008	2.65138971794824
2009	2.5479427557235175
2010	2.002557142756715
2011	1.257338788198455
2012	0.9603457707376615
2013	0.8552113139433891
2014	0.7392172054319339
2015	0.6251295087379696
2016	0.6918524812198172
2017	0.9578147593000772
2018	1.0194018110374676
2019	0.9072240233067876
2020	-0.930293287327223
2021	-1.5463096038351118
2022	-0.1697122972332585
2023	0.009639838727219132