Year	annual %
1961	0.8288436088996605
1962	-0.2377893765022776
1963	8.821097324940851
1964	7.766033336279591
1965	9.600158918090912
1966	4.54524246930481
1967	5.009885133961461
1968	10.152012232729504
1969	8.81087281465554
1970	5.5051666010062235
1971	3.4348708885115258
1972	10.31141673856311
1973	2.5311687511200915
1974	4.9650167515445105
1975	0.11377342058152351
1976	12.596608833565995
1977	-1.6522300436256643
1978	-5.383804039618653
1979	-3.669683653896641
1980	-7.714268206294236
1981	-5.9379881343878935
1982	7.895515039285755
1983	1.274501148722436
1984	-3.614945241065044
1985	0.7379000227793426
1986	-5.824655726587665
1987	-2.8055715957698624
1988	-2.0089204854057527
1989	-0.3209920413676173
1990	6.9145889337841595
1991	-2.212384871771931
1992	1.9065392264674443
1993	-0.6744646571533224
1994	-0.051285927247263885
1995	0.4212610387914566
1996	4.041781735213263
1997	1.8703385298044708
1998	3.8718558773046254
1999	2.2862315262705266
2000	3.9630937316442925
2001	0.7698326370605173
2002	1.2987902815080332
2003	0.48006936515466236
2004	5.672313248821098
2005	2.461380354091162
2006	3.2794313772649843
2007	4.020632218717751
2008	1.7653102780882222
2009	0.6076649506169645
2010	3.3217349366748294
2011	-2.7696548461029664
2012	1.6763366299172873
2013	-1.4987325255101211
2014	-0.21940742799070279
2015	-1.2437511697108334
2016	3.5078423040862248
2017	1.3963858633521795
2018	0.08803087363205009
2019	-0.6049065814335961
2020	-5.923515281400071
2021	4.636484098244324
2022	2.8657288745062175
2023	1.1704820933278341