Year	annual %
1967	-3.745040632992186
1968	-2.2779798686885186
1969	3.0081543112234357
1970	3.4676984254291483
1971	4.065197465000864
1972	3.584219941591016
1973	6.039392995291678
1974	23.898235843824395
1975	0.9313159587469642
1976	4.976593892665207
1977	10.770966531645243
1978	8.417213279000578
1979	7.34460906345609
1980	33.02313143765582
1981	9.470476914151234
1982	6.2983525029532785
1983	6.970198034912272
1984	6.201153438184122
1985	8.953644319608543
1986	7.490749486475195
1987	3.014808422650745
1988	3.6705965517075327
1989	2.919979055607371
1990	7.694359622248513
1991	5.396316186651973
1992	4.587878320755664
1993	3.0349824633210147
1994	0.6553402301128699
1995	7.538402939498965
1996	0.4354885672477167
1997	0.7133916425043907
1998	11.657170213799787
1999	-0.12015615647560196
2000	-1.7675986844836302
2001	0.6145229117553441
2002	0.9595593394348327
2003	0.8604082553139278
2004	0.9135451791318019
2005	0.8862213763753317
2006	1.4453667845756542
2007	3.171544123420915
2008	4.8303863930625965
2009	-0.45255878055276355
2010	0.647501047462967
2011	-0.5988449071711415
2012	0.5331724619263838
2013	1.26026248256035
2014	0.21543776242867807
2015	3.172935309671246
2016	0.9698838680499193
2017	-0.06089101429319044
2018	0.9391816375319735
2019	0.8168054564852838
2020	0.14241796207909374
2021	2.3945371427277706
2022	3.0515118903607004
2023	4.183203449228586