Year	annual %
1961	2.725266289223683
1962	-2.073797290985521
1963	8.776113707908042
1964	5.454704902218714
1965	7.5592515592515594
1966	3.587443946188341
1967	10.762800417972832
1968	7.176549865229111
1969	3.1122288588494187
1970	9.432926829268293
1971	13.211121635928011
1972	27.901368244905996
1973	27.5368453457498
1974	12.931840811030987
1975	7.1388495551577655
1976	11.570783770978279
1977	9.485706622560961
1978	14.567724813718485
1979	12.487304217672529
1980	18.466948628997766
1981	25.17549841550002
1982	13.654863002723921
1983	10.260531212992726
1984	11.506627455994545
1985	11.244973779564878
1986	22.563288529727053
1987	89.33106823877685
1988	16.671848949773313
1989	20.125993685086854
1990	10.521211455326846
1991	1.6615144615419908
1992	-28.629778399602834
1993	4.695091746503515
1994	7.6548473233453205
1995	20.291332268871024
1996	14.506458954012869
1997	25.505218083472364
1998	20.845244888962213
1999	4.396703759075405
2000	11.06361358067303
2001	8.8246818925847
2002	4.994044678656536
2003	9.797748746910566
2004	9.821620211913988
2005	13.849537839702705
2006	14.097469792190948
2007	15.811546840958608
2008	17.8034358014177
2009	-0.06513508280318007
2010	3.9900358441040193
2011	-4.418049589243125
2012	0.7699402797053846
2013	2.1023058072037815
2014	-2.5344017650960797
2015	1.9742147596512143
2016	8.716838179069455
2017	8.296331612730954
2018	5.299826049363905
2019	-1.3641581194260624
2020	9.706440177440603
2021	9.73272949147508
2022	8.607499573752682
2023	-2.6347660708974603