Year	annual %
1961	-11.320442963687
1962	-9.993765309415807
1963	17.685425431837174
1964	14.527781332862347
1965	2.994578299800324
1966	2.117153971148639
1967	0.47318746047551485
1968	-0.7752454447539208
1969	15.148202579239324
1970	-13.936380634947739
1971	-9.478970323393838
1972	10.149645802133605
1973	7.197484164651442
1974	52.4795588797227
1975	5.575828937487486
1976	9.493713595946858
1977	19.36071806675173
1978	2.289897244064761
1979	14.614460950144093
1980	21.635692188966658
1981	15.49144585910281
1982	-9.182174017244108
1983	-13.644825263768041
1984	-3.9213549171648197
1985	-2.4401396394584935
1986	-13.690424395023243
1987	-8.701013985036823
1988	-11.613801199767238
1989	5.367978413546453
1990	5.813629202555589
1991	6.8893203828775995
1992	4.3032294283623855
1993	2.6417708897190835
1994	15.008719347712514
1995	5.222553228390112
1996	1.490154814511797
1997	7.006173042026262
1998	-3.7826792354184704
1999	-26.299992832085366
2000	-11.683450854299977
2001	26.598216783547542
2002	11.486562424099361
2003	11.24727983991356
2004	6.3906199712691745
2005	8.582991269326598
2006	8.716585828817443
2007	7.063421716942344
2008	15.094116008240334
2009	-2.7691259490032536
2010	9.01371738601253
2011	6.83751222954146
2012	5.003235907948621
2013	2.6668672801717577
2014	2.0529605157063173
2015	-5.475632656715348
2016	1.1711445039272377
2017	0.9320316561248347
2018	1.8193967068375798
2019	-0.05657518726927435
2020	-1.825956442561349
2021	2.0490108278953727
2022	2.1957110830010294
2023	-0.4081968580424018