Year	annual %
1960	1.94574935198645
1961	2.15797310981964
1962	4.26372712149085
1963	2.9669597758771
1964	3.44489848222768
1965	4.18722443998004
1966	4.17434761852995
1967	3.57995226730312
1968	4.09389143106836
1969	3.48791924395193
1970	5.73114484293532
1971	6.39534883720926
1972	6.56236090256536
1973	9.143471128743634
1974	15.5485200326028
1975	14.15687262728745
1976	11.63675205588695
1977	11.1820214595703
1978	8.61843219505991
1979	10.128892275368809
1980	13.63445060660105
1981	13.6429608127722
1982	11.3409961685824
1983	8.87302152363213
1984	7.67380262247321
1985	6.734693877551
1986	5.29166170071091
1987	4.74728490389789
1988	5.82489868439437
1989	6.25983137956977
1990	6.72181952228657
1991	5.93421344335924
1992	5.05697796731731
1993	4.597903210065555
1994	3.502625774133975
1995	4.35177861328367
1996	3.00009076251617
1997	2.26900305912499
1998	2.10577481135337
1999	2.172603188762085
2000	3.0638034489953547
2001	3.18908268106052
2002	2.477360679109365
2003	2.18428358241519
2004	2.2579640963823
2005	2.472121790478635
2006	2.6001537646035198
2007	2.4847043881287103
2008	4.11407022033816
2009	1.10457711175391
2010	1.80735230566098
2011	3.374297594325215
2012	2.5294552091577254
2013	1.451565263983785
2014	0.6245173110865689
2015	0.3387056954101675
2016	0.443258157565783
2017	1.8226433605906252
2018	1.932468122863595
2019	1.740712678701805
2020	0.73285164517586
2021	2.81528854435832
2022	8.23803240697186
2023	5.6776786261542895