Year	annual %
1961	3.9630252304175855
1962	-2.6096183394846832
1963	-6.837647932992866
1964	8.559334566135291
1965	8.747054963658684
1966	-0.8562873592700981
1967	-1.964934610818318
1968	1.3427862854299804
1969	8.848134793674618
1970	-1.5963526349882073
1971	9.019885219550787
1972	-2.443370598003966
1973	3.0145659079047675
1974	3.7466341588531265
1975	-0.7086845751038169
1976	-4.783098702792273
1977	4.4080908984094975
1978	-5.889227650552954
1979	8.187207939171827
1980	-0.08191819034287562
1981	-8.041456313113514
1982	-5.684179991053199
1983	3.0777152566027866
1984	0.5040394066220983
1985	-6.71384971436288
1986	5.46900605990119
1987	1.064671426986834
1988	-2.292330478245347
1989	-12.205487090455918
1990	0.1603648290556805
1991	8.84684330767189
1992	7.640535364127544
1993	7.421661907425062
1994	4.246640079905873
1995	-4.465278807786973
1996	3.9738505794078662
1997	6.716595678513016
1998	2.304161687270806
1999	-4.624819535735099
2000	-1.949038552145538
2001	-5.6564961128986795
2002	-14.131226785954766
2003	9.069395201936146
2004	0.04836443655477751
2005	7.553631411468672
2006	16.539048630424034
2007	8.64302626864881
2008	3.134217982795832
2009	-7.434456050899627
2010	9.402727524645542
2011	5.3195061913715875
2012	-1.6155873253480308
2013	1.5192884971022949
2014	-3.4603201472282166
2015	1.8230254483410278
2016	-3.4645894655715495
2017	1.3324337770969237
2018	-4.661284290267659
2019	-3.272827269660155
2020	-9.56855587420209
2021	10.405580609147805
2022	4.094797214352084
2023	-2.7482819690859657