Year	annual %
1971	-2.1040656023162114
1972	5.5212628514302935
1973	7.9360151613291094
1974	2.8627717619975215
1975	-13.46765092419973
1976	23.98474895248151
1977	7.5365962771813315
1978	-1.026205785715291
1979	-1.241653611289891
1980	-1.917359349150999
1981	-9.038253124153513
1982	-10.768440377529217
1983	2.761484803954801
1984	1.3855254365397371
1985	-8.081834962229834
1986	-2.3728265416493315
1987	6.525762552860243
1988	3.287046313291114
1989	-3.0483959833281915
1990	0.9927127568576424
1991	7.491204969521576
1992	3.0234737234765134
1993	9.076230443526413
1994	-3.528572250273726
1995	0.593021767804359
1996	0.8486090818034882
1997	-0.04839679111945827
1998	1.6982735498999375
1999	1.339020825290163
2000	2.442157460587893
2001	-0.14972112001109394
2002	0.853377100184872
2003	2.2082433637054635
2004	-0.10381597925231745
2005	-1.3364495952026942
2006	-1.1053530223242092
2007	1.0554005156669888
2008	-0.4349704985816487
2009	-3.468434461000058
2010	1.39489073188075
2011	2.1154456987907224
2012	2.6389513943689167
2013	2.3475958827441303
2014	0.41389413903054617
2015	-0.9888552999090621
2016	-0.014526319313944214
2017	0.45023218838487367
2018	0.1914576334883833
2019	1.6987241435001437
2020	-3.5655986053501465
2021	3.5862590018989096
2022	4.252561279575474
2023	1.5655880647954348