Year	annual %
1960	2.22811242067084
1961	6.78982340440243
1962	9.40819406826558
1963	6.5811373646406
1964	5.17275042328816
1965	7.70833326420493
1966	7.93036754448455
1967	1.70609316005932
1968	2.07922185813623
1969	2.45805425617799
1970	6.11074203598739
1971	11.9725681644789
1972	12.8814708218396
1973	20.0323771024943
1974	39.6799704514568
1975	39.3067310238304
1976	31.3108653312175
1977	34.6167148708237
1978	50.5509246487277
1979	78.310035593149
1980	131.024995515683
1981	116.800034437445
1982	120.364351369544
1983	145.951539223485
1984	373.215653131363
1985	309.931699181469
1986	47.8885135135135
1987	19.0748143917761
1988	16.4028776978417
1989	20.3543469303667
1990	17.1858952413557
1991	19.1352614665498
1992	12.0156939676313
1993	10.9238178633975
1994	12.2755081902506
1995	9.93144665143266
1996	11.4166933162775
1997	8.96957520091852
1998	5.49190043461083
1999	5.18102372034954
2000	1.03264094955491
2001	1.1513157894737
2002	5.77235772357722
2003	0.70275612166467
2004	-0.381637771235433
2005	1.31348511383542
2006	2.06352636127917
2007	0.455170953741894
2008	4.55216016859853
2009	3.35617818988106
2010	2.69137006338376
2011	3.48494919760703
2012	1.67920719398061
2013	1.5702553921126
2014	0.479786761439324
2015	-0.601291007162392
2016	-0.551552352993558
2017	0.25941497450575
2018	0.794075660242718
2019	0.84978312826417
2020	-0.61441235846577
2021	1.51020047690539
2022	4.39359665912654
2023	4.22535211267609