Year	annual %
1961	7.696529798304866
1962	9.060758598767165
1963	-5.078421074585847
1964	5.004875747338346
1965	11.4348434975809
1966	4.003371260008464
1967	10.63613614262566
1968	6.92182131752115
1969	7.518404794332923
1970	9.509402994584221
1971	3.9127224360623813
1972	1.2738006718926442
1973	1.3407004244610334
1974	-4.650841243862573
1975	-1.9000000010200466
1976	4.360211004713733
1977	3.642205769032003
1978	4.876939314544202
1979	7.893008136505173
1980	4.373064813836592
1981	-1.8997515709484105
1982	-4.900938477580823
1983	0.5012531328320904
1984	3.600374064837908
1985	1.0982398074319377
1986	5.104166666666671
1987	2.590967011185043
1988	3.5053822798785603
1989	3.6000000000000085
1990	-3.307593307593308
1991	-3.899906828164518
1992	-5.692520775623265
1993	0.7930679982376176
1994	2.0107824566516115
1995	2.0139980002856817
1996	3.976477177261259
1997	4.740102343118764
1998	3.7284649010028232
1999	0.334655428854731
2000	4.447189623224219
2001	-2.365464222353637
2002	0.7874015748031411
2003	2.1754807692307736
2004	1.4115986354546521
2005	3.95545760352627
2006	6.070545637134558
2007	2.0791838891775143
2008	0.6334610593099654
2009	-5.017275959496615
2010	-2.2177104367774945
2011	-0.7723961400326402
2012	-0.2491103776230119
2013	-1.313543467567655
2014	-0.058287900440774365
2015	2.423925408241118
2016	2.55267799311693
2017	0.5147531258313762
2018	-0.7463524967024284
2019	0.3798937325337306
2020	-12.539666413440699
2021	-1.1831971200860494
2022	13.480861569470946
2023	4.5164896590273145