Year	annual %
1961	-2.5812804182587
1962	3.6359093284719535
1963	3.275872004727404
1964	2.1044275911086316
1965	1.823357827349767
1966	-1.3326989890498027
1967	-8.143196578821687
1968	1.0242866308563379
1969	8.535056108522781
1970	5.847507173602494
1971	6.583811348539271
1972	0.7512708893000735
1973	1.321119919610652
1974	5.414825396851143
1975	-3.189646903959698
1976	3.964885016958533
1977	1.7505592557816243
1978	-3.1601602994288953
1979	2.498230332136714
1980	1.3482299141617489
1981	-6.2961344154678756
1982	-3.6548081351687927
1983	-7.363686475575022
1984	-2.1654809074255184
1985	0.8025301012590518
1986	-0.15568125678487377
1987	1.1745481802813345
1988	1.1980211622468602
1989	-1.2442922555007954
1990	5.632736465858045
1991	-10.48288595833992
1992	-0.435170274819626
1993	-3.4799840973319363
1994	-3.2320099053550706
1995	-0.027649377479463055
1996	2.877283760783797
1997	3.595615890466391
1998	4.092648124989708
1999	1.3841555619666934
2000	2.679445637003681
2001	1.4617232926333656
2002	2.7940046246253587
2003	-3.6942539659581968
2004	8.745814843192235
2005	2.909007779997779
2006	3.2240094134072876
2007	3.209552861014501
2008	3.3846395555940205
2009	1.836783801262115
2010	3.4777246579102297
2011	1.2582330488057494
2012	1.1813028307162057
2013	2.7538150102530636
2014	2.0780360358507295
2015	0.3884664794051389
2016	-0.44630635588224266
2017	-1.199524056472157
2018	-0.21880059526657192
2019	0.49885186518201863
2020	-5.205608910830463
2021	0.4168868216155204
2022	1.4348436505990492
2023	-0.29377335667749094