Year	annual %
1961	8.609343759230143
1962	8.91004308852736
1963	7.691508779306574
1964	5.443082248519531
1965	-1.307864401125272
1966	8.730822884651161
1967	-1.6881835134147138
1968	-1.399294521488116
1969	1.596262662381136
1970	9.59824380631619
1971	14.429924124672297
1972	16.591045485990023
1973	22.256419407952222
1974	35.49209217754634
1975	36.56601490746692
1976	31.371935883434844
1977	41.56529668094379
1978	56.13844471624034
1979	76.86237141778633
1980	125.36936223000504
1981	124.62072342177376
1982	127.24432240403763
1983	149.9209825895886
1984	384.77029813062825
1985	264.5367059735697
1986	50.15993107428042
1987	20.178872213712083
1988	19.165227680005344
1989	18.702867022391217
1990	15.93206536554797
1991	20.12976991941619
1992	12.058127727504669
1993	11.090247755854364
1994	12.53792933583506
1995	9.069239210144687
1996	9.228876876133654
1997	8.0860951794631
1998	6.878110717352342
1999	6.1860973446610075
2000	1.9604989131011763
2001	1.747721558223276
2002	4.7598173752713535
2003	-0.4691263586255019
2004	0.1273362041001036
2005	1.036846675749942
2006	1.447159708800939
2007	0.8598108689162416
2008	1.3550567278965246
2009	4.419211776372478
2010	1.1874525869746861
2011	1.4684753200230745
2012	3.2698586062158057
2013	1.80352515595645
2014	0.6691934426995942
2015	2.3177480289686088
2016	0.3578807362184051
2017	-0.03386643304843062
2018	0.783950865361831
2019	1.8364701972610362
2020	1.0414184276851017
2021	2.1282947171986137
2022	4.623307217031439
2023	3.9449133355186916