Year	annual %
1961	2.743680193178072
1962	3.0301826326870582
1963	2.993337800959381
1964	3.367772317373344
1965	2.3623121214866316
1966	3.59364081326936
1967	3.2996803947004167
1968	3.6715761871467834
1969	3.5928369461449847
1970	4.272866907501246
1971	5.38437111275978
1972	6.786658893773364
1973	14.676270875082764
1974	23.21302672283305
1975	15.469143574133184
1976	8.5989208742604
1977	12.54061842900343
1978	8.826450626120135
1979	14.614460950144093
1980	18.288010784912757
1981	10.808355639461325
1982	7.08276256147326
1983	7.027936497908826
1984	10.48300205820695
1985	9.360922047807641
1986	7.263041172770208
1987	9.326562618516519
1988	11.655297949067872
1989	10.908896874544595
1990	18.54790029917801
1991	14.610258813735683
1992	5.56829005918074
1993	8.811785022604184
1994	11.72227820328051
1995	10.508667229749122
1996	3.930579753464599
1997	3.7042377527197345
1998	5.37109035742958
1999	3.8341544024193865
2000	4.56004348689325
2001	3.323426763715524
2002	3.718247590085099
2003	4.718566729448568
2004	6.451983851607594
2005	5.940797630219279
2006	6.1071543478173
2007	6.226084643335724
2008	7.602438982606891
2009	3.53797080152426
2010	4.655701382503423
2011	5.659653514985365
2012	3.5982212444109507
2013	2.5216756937049496
2014	2.5046100402686733
2015	2.78817037438111
2016	2.1019411183078773
2017	2.85888372957956
2018	2.277415317621333
2019	2.9611884630726735
2020	1.4817246203753882
2021	4.605728088887929
2022	6.470499208910873
2023	4.697411400987569