Year	annual %
1961	-0.025163563293328375
1962	-0.06293662489826093
1963	-0.20166379408165053
1964	-0.29060605454050065
1965	-0.3422273445959133
1966	-0.6113111243049364
1967	-0.679359146853194
1968	-0.39951080910219344
1969	-1.9559888164665338
1970	-3.893631851694321
1971	-6.140360806092282
1972	-4.663787435016134
1973	-4.540207253355167
1974	-4.890190225547481
1975	-5.495225540185716
1976	-5.796082737605447
1977	-6.472619121412835
1978	-7.006594810027663
1979	-7.326592245605972
1980	-7.731230430055389
1981	-7.919018383960758
1982	-8.335811380254327
1983	-8.677111750823533
1984	-9.080401216270538
1985	-9.062108558421219
1986	-9.205128685971829
1987	-9.767085875240774
1988	0.46317822500382705
1989	1.1486457556490888
1990	1.4512726371564486
1991	1.3861165365153516
1992	1.4984855095174885
1993	-3.1551161875519997
1994	-3.257916028854335
1995	-3.3194133401219994
1996	-3.3336420267591835
1997	-3.3454716464507053
1998	-3.2480592289165595
1999	-3.2470385030784046
2000	-3.2423186705226654
2001	-2.999071368368229
2002	-0.5283252676583099
2003	1.4027114855997584
2004	-1.3438706483622214
2005	-3.776295267317259
2006	-3.734099040809652
2007	-3.9449020760721396
2008	-4.175690810885226
2009	-4.142396383799871
2010	-3.5014517845102033
2011	-2.6327206906329574
2012	-3.332350178964663
2013	-4.926308921962736
2014	-5.007410064600464
2015	-4.81376355981545
2016	-4.673747785168982
2017	-4.7021394437073
2018	-5.145167677576005
2019	-5.090432986176755
2020	-5.598263475093657
2021	-5.805741462661248
2022	-5.109668266230464
2023	-4.695698308777098