Year	annual %
1960	0.790205817960074
1961	2.43079391009159
1962	2.67785968742788
1963	2.93161847051352
1964	3.32403316018127
1965	-0.665000000583401
1966	0.182882837621527
1967	1.20834031134425
1968	4.09389143106836
1969	2.62934083658332
1970	4.65229749303154
1971	3.08304841408707
1972	4.60112569280858
1973	15.2140342204182
1974	30.0736292803636
1975	17.3692020226552
1976	3.48583333291706
1977	4.1902404526167
1978	6.00712709994902
1979	9.18841043700977
1980	18.135170796071
1981	37.0563415239514
1982	90.1213328504166
1983	32.6237081487831
1984	11.9474270118864
1985	15.0574196445756
1986	11.8350618936099
1987	16.8424201630394
1988	20.8325332309203
1989	16.509808768739
1990	19.0397526635649
1991	28.7092913706618
1992	21.791168790061
1993	9.77860078293777
1994	13.5344687273427
1995	23.1864981102567
1996	17.5114524814591
1997	13.2480440791191
1998	11.6592997742233
1999	10.0452817292494
2000	10.9615496593622
2001	11.2556157091172
2002	9.16752048509119
2003	9.44758091616984
2004	12.3148150178852
2005	13.7982949108987
2006	11.4705968149052
2007	9.35724456417157
2008	13.4244635507284
2009	7.84270167700654
2010	5.66275708420021
2011	4.87799830970702
2012	4.49545314354605
2013	5.23133614174428
2014	4.51920098516954
2015	0.801982005099623
2016	-0.0174788505908217
2017	1.62590692991732
2018	2.22111461526581
2019	2.09604635327807
2020	0.724911478131376
2021	1.72647755109241
2022	8.27477490232654
2023	0.525193508693455