Year	annual %
1966	-0.3507796758342181
1967	11.93816496623748
1968	0.15152208390331623
1969	0.6152101282425235
1970	-7.486575116236551
1971	0.2885196887077086
1972	-5.928528264353545
1973	-2.5999165859244613
1974	4.114186084731401
1975	4.411896908823508
1976	4.451579032599653
1977	8.75755026059548
1978	-3.196380214722268
1979	-0.06688833355386237
1980	4.532313818531605
1981	1.3443834203328748
1982	-1.052054892157031
1983	-2.3700007553690767
1984	-9.029224625691086
1985	1.646141282062132
1986	10.953962475185591
1987	-7.712070618593927
1988	2.831718465234559
1989	-4.392620950670818
1990	-5.483232070360259
1991	2.637989750657539
1992	-1.739097780968919
1993	4.038247355206437
1994	-22.01297750366868
1995	13.987298833939292
1996	15.35481921373281
1997	-0.14729780199989762
1998	10.169733084163582
1999	13.532171981104852
2000	-2.4535824488394695
2001	-1.7549348950065706
2002	2.181045003186611
2003	1.9359825275786449
2004	3.2944567533327813
2005	2.195298903342163
2006	1.0638222683809744
2007	-1.3823518953780507
2008	4.135040320944853
2009	-1.8827865650079616
2010	2.376096896100208
2011	2.5641859684373003
2012	6.2018556700489
2013	3.1844665768662566
2014	-1.6491122472178432
2015	0.6579994059416379
2016	1.2380493725140838
2017	0.5922018204633304
2018	-0.3998434766604646
2019	0.6838773344471747
2020	-0.7878378809213871
2021	0.5895447890587775
2022	1.872176245521075
2023	3.3411096770018673