Year	annual %
1961	2.9066066576114196
1962	-0.9167269479322044
1963	-4.903168689950888
1964	0.6837123097911331
1965	-1.3993453618590337
1966	0.4059728187253455
1967	-1.1952518811857828
1968	7.990359668807685
1969	3.954771294438686
1970	4.6805457048952945
1971	4.203649006298505
1972	4.25651248988359
1973	5.325798535875094
1974	4.521951193797946
1975	2.9771985786360062
1976	4.446606878324417
1977	5.641112875022742
1978	4.305796816686083
1979	4.59402153153907
1980	7.413628689281367
1981	5.383028056632327
1982	-0.08609187980154331
1983	2.0538271713594725
1984	4.511292577509508
1985	0.3248607781232522
1986	3.6783139984507756
1987	2.998842921983183
1988	3.6598219571244215
1989	5.826578190901287
1990	5.334427874635566
1991	4.931703684363399
1992	4.691739599951433
1993	4.730771665240766
1994	5.779395066482579
1995	6.465882891672223
1996	6.086859406710303
1997	3.0348280823428126
1998	-14.47565149230553
1999	-0.7095009288139522
2000	3.4127142037196307
2001	2.1922469753592395
2002	3.0739671721592146
2003	3.3876998366458366
2004	3.70207032744014
2005	4.3684186665389575
2006	4.1390354405822904
2007	4.959048418426335
2008	4.6421735978063055
2009	3.3069039410600283
2010	4.9027285787370545
2011	4.844905700557149
2012	4.706702920232033
2013	4.284778456768734
2014	3.796140767795933
2015	3.717745469088271
2016	3.926698090736494
2017	4.0176256075747006
2018	4.16298429125608
2019	4.03913565656795
2020	-2.8850940934230067
2021	2.9849400734317015
2022	4.6392086044408956
2023	4.2786868536259135