Year	annual %
1961	-0.24394543079472847
1962	-0.4169739440850113
1963	-0.4421532747574254
1964	-0.4695559386344728
1965	-0.5373551313061353
1966	-0.08400926747458817
1967	0.8475048316171152
1968	0.54116241732049
1969	0.2340396579161704
1970	0.36920900833267145
1971	0.19776652272938613
1972	0.10507654506077971
1973	-0.0025160566694812014
1974	0.05552001621830343
1975	0.36708877032012555
1976	0.3120237888946984
1977	-0.12569138977563712
1978	-0.37522654669389605
1979	-0.6578684534589294
1980	-0.7842741707644094
1981	-0.6728027139674961
1982	-0.8034151207355279
1983	-0.9948236097747233
1984	-1.0378755304682064
1985	-1.002305325110468
1986	-0.9762463355953158
1987	-0.9609935726466567
1988	-1.0057921219572874
1989	-1.0429511184414697
1990	-1.338387640402095
1991	-2.404481555325193
1992	-1.5502163489556264
1993	0.1975882172673922
1994	0.18504497682230403
1995	0.12917452625325224
1996	0.04227131842489695
1997	0.0414150418183229
1998	0.11910839704441678
1999	0.17018463083635135
2000	0.1987885810933379
2001	-1.0725254940118538
2002	-1.6780608564810717
2003	-1.0011905829441887
2004	-0.8483832234564672
2005	-0.8968933819990202
2006	-0.8725590937655358
2007	-1.7581561658236815
2008	-1.9481202669956947
2009	-1.1156073937332773
2010	-0.8772850729202636
2011	-0.7759982303935191
2012	-0.4755941223043424
2013	-0.29095860413546215
2014	-0.29429180412396455
2015	-0.4418532278849707
2016	-0.6018573275315571
2017	-0.6561240976109267
2018	-0.7221793081006653
2019	-0.7139405880151634
2020	-0.7906210977803337
2021	-1.0411831787494885
2022	-0.7442057319961436
2023	-0.35510928186210744