Year	annual %
1961	1.2726490685956264
1962	2.8945504952247774
1963	3.612043686365652
1964	3.297370365219308
1965	2.8493957943467336
1966	3.411503460158201
1967	-0.4239826638858659
1968	0.281577692368856
1969	0.831139663787738
1970	1.8732287155689704
1971	0.6527379135733042
1972	0.5873996636651384
1973	-0.1324201449675968
1974	-3.4949750254060206
1975	-2.4971364206672604
1976	10.941990251878735
1977	0.1038662962204171
1978	-3.4831364961187887
1979	-7.875588684665232
1980	8.402321000890282
1981	-3.2094511232830456
1982	-0.16797476549250234
1983	5.4790444308364386
1984	3.52301639724233
1985	2.0817895440660408
1986	1.2632448701687622
1987	1.2126037176360285
1988	2.033178413481565
1989	1.802488745701993
1990	1.8292608305083178
1991	1.5302828234580232
1992	0.912807036373664
1993	0.667271654351012
1994	1.9031975170534565
1995	1.0886197829214694
1996	1.7713342135240708
1997	1.9839838313564542
1998	1.7587955095658288
1999	2.3170493584027554
2000	2.847890049539643
2001	1.8653137931822386
2002	-0.11004978317890846
2003	0.21131832335341016
2004	0.04454340150144276
2005	2.770137061644178
2006	4.383960626159535
2007	4.869947964930674
2008	3.680243523598108
2009	3.618773645933942
2010	2.0270099835687034
2011	3.228272718391807
2012	4.100200331978357
2013	0.971061658965013
2014	1.9773926226427534
2015	0.8308571871852735
2016	2.4896829584114357
2017	2.1368072387280392
2018	-0.7617037061404943
2019	-0.2535574026562841
2020	5.5184667300703865
2021	4.454796511573363
2022	1.1727364098823614
2023	2.2203000855733848