Year	annual %
1961	6.048157682668929
1962	27.65608866538787
1963	29.974250939971313
1964	40.03629574616215
1965	24.532972272810454
1966	15.88206957296822
1967	8.689511350303647
1968	30.86090499456452
1969	10.45135095702527
1970	2.4025896782195417
1971	-7.654535211095521
1972	6.172367218808915
1973	-1.5583400441759778
1974	16.856487453790464
1975	-1.0734192393431954
1976	16.674236371999967
1977	3.369197039073285
1978	-1.8798658054068937
1979	3.51197794663058
1980	-4.269698667577785
1981	-23.066930096247418
1982	-2.0247423919498146
1983	-6.977014748847168
1984	-8.79677068804206
1985	4.805398743147521
1986	-14.053773865525926
1987	-17.140430683053125
1988	4.646468989873014
1989	4.383786898917037
1990	1.1022465505438248
1991	12.858613476168898
1992	-4.963421591480781
1993	-5.88380425183442
1994	-0.18077976157947262
1995	-4.116206756117123
1996	0.29058512761810107
1997	3.44680248731504
1998	-5.07450822900023
1999	-0.7848116552249564
2000	1.732474526825456
2001	-4.018195926909058
2002	-3.330060348023167
2003	10.216145074614985
2004	1.7999032677307127
2005	8.98826677214268
2006	4.086751779812502
2007	4.072898989507195
2008	-2.2650126428746518
2009	-6.381578806022048
2010	2.895038530666767
2011	-47.89998600820916
2012	96.95641989940242
2013	-19.578357208148233
2014	-24.46316147066264
2015	-2.3554369235898207
2016	-2.9015901078619777
2017	30.496301378599725
2018	6.282836895663692
2019	-7.301237167789054
2020	-58.84977470991427
2021	150.43147128152006
2022	0.18979195922258896
2023	-2.758113083146128