Year	annual %
1961	-13.107927867665907
1962	18.09045340977721
1963	2.462864486658887
1964	-5.01557985949735
1965	-1.7386502676580022
1966	3.779134087494313
1967	-3.828614270051389
1968	1.3123547675976113
1969	6.200655508179295
1970	-3.0597851337090276
1971	3.13280409059648
1972	-2.487388709416166
1973	5.264866523107486
1974	0.3993435407246153
1975	-7.472426574605478
1976	-7.72001219136952
1977	-1.7376075582416917
1978	-8.216424813118849
1979	-3.0109855931266196
1980	-0.8887856675947887
1981	-0.4417796786105015
1982	-3.1436168545566687
1983	-1.3362589419921846
1984	2.4515557070092626
1985	-2.5337809611962143
1986	1.6637345402589432
1987	-0.4236624745174993
1988	-2.6180823577216756
1989	-4.316132924968258
1990	-9.58421338945476
1991	-11.393525421991342
1992	-13.155871634332371
1993	-16.19859123976191
1994	-8.370576956629392
1995	-3.4265807705248505
1996	-2.8917581685922897
1997	-7.098396743674286
1998	-3.9248000344886123
1999	-6.969532094988665
2000	-9.570694324254106
2001	-5.012042163036881
2002	-0.15173106453532625
2003	2.514865995298308
2004	3.6034024203934365
2005	2.8795282649237635
2006	2.017148351466247
2007	2.897014252896767
2008	2.880741557866969
2009	-0.3784621995454671
2010	3.686160115602675
2011	3.3518213098953993
2012	3.5520187670966976
2013	4.845979483106618
2014	5.762181554397515
2015	3.35308434739035
2016	-1.0889960238774563
2017	0.21664309460784636
2018	2.41383997494529
2019	1.1109662739281703
2020	-1.492689427368063
2021	2.8323793247288194
2022	5.496328335274043
2023	5.107949039767945