Year	annual %
1961	3.3938505869563613
1962	-0.8427925252768915
1963	0.7614959042882674
1964	-0.7190017234657944
1965	8.076817874351633
1966	4.95788513775463
1967	-5.219075095797706
1968	-3.4198142218173047
1969	8.443112384495137
1970	7.136643800395447
1971	0.5998329099125215
1972	3.361177368236895
1973	35.83750425616037
1974	7.64725898697904
1975	-6.392802479706631
1976	12.416354121695264
1977	15.747794992574214
1978	11.211351501609613
1979	4.586519936899023
1980	21.094821576641465
1981	11.49999135276174
1982	10.000018396173928
1983	7.799984610982477
1984	11.717493387168503
1985	-5.900180282977757
1986	-4.200278683225477
1987	1.6845634269815548
1988	-5.299997769733139
1989	1.3999863554507357
1990	39.359954276817376
1991	-2.6407432784843223
1992	-5.201937139504508
1993	-3.86881350357649
1994	22.214367543041377
1995	4.249461321495744
1996	6.968634944361682
1997	6.99168132354842
1998	6.078162685722589
1999	0.37974663716506996
2000	3.1783937007447065
2001	5.012520932603621
2002	2.5723019252641706
2003	-0.18848138092404554
2004	0.38694202828206414
2005	8.584884441446874
2006	1.4961975811766308
2007	7.036661074582156
2008	10.129115720623133
2009	4.190059997951906
2010	3.4750430143817255
2011	3.9716051825615892
2012	5.308339371789074
2013	-0.3691740821394518
2014	-0.4056768454050399
2015	2.249426436212005
2016	1.7927214655758519
2017	0.3682767289701019
2018	2.4036862433171535
2019	-0.024382762740458475
2020	1.1629797417771215
2021	3.118645971849034
2022	4.018999979447429
2023	3.3879179231005594