Year	annual %
1961	5.163870439332314
1962	5.040285298855215
1963	4.850469302966711
1964	4.63403405835079
1965	4.427078365877217
1966	4.249318691681987
1967	4.10910693906266
1968	4.01234578408316
1969	3.8935299894201707
1970	3.6984402605919793
1971	3.522624807399022
1972	3.4716049497028347
1973	3.4578214952766078
1974	3.458848930319792
1975	3.2213231576360837
1976	3.2391887405350124
1977	3.2946211690940324
1978	3.3402783859100214
1979	2.5578996587085583
1980	1.541557518324774
1981	1.3552092510197036
1982	1.385214154439416
1983	1.4391214297047707
1984	1.350141299665293
1985	1.18514663529771
1986	1.0997429654529822
1987	1.0283424368736618
1988	0.7638934444726382
1989	2.3638030145744815
1990	2.6957646787444998
1991	1.300386889885814
1992	-1.6037423871207293
1993	-3.7413973382360814
1994	-2.861061195483895
1995	-1.9365875014180343
1996	-1.140086823462766
1997	-1.2584568714050643
1998	-1.3733741117769274
1999	-1.4996345053948803
2000	-1.6103749047825844
2001	-1.5586762444342943
2002	-1.1324657024828562
2003	-0.8307952780949901
2004	-0.7514322550979736
2005	-0.7615354359572946
2006	-0.8385726382948685
2007	-0.8894150932624594
2008	-0.8559376090560445
2009	-0.8003399530126496
2010	-0.766716914319411
2011	-0.7472497684294201
2012	-0.6561429031979545
2013	-0.568544597024387
2014	-0.47794116124173425
2015	-0.43578728007028433
2016	-0.4490336449368309
2017	-0.453337251352094
2018	-0.46740378489834433
2019	-0.45327799951048076
2020	-0.38438343355036053
2021	-0.3367680585030908
2022	-0.15347782856003542
2023	0.17081759741975266