Year	annual %
1961	4.945394047666625
1962	4.070863045887464
1963	-6.572564846552652
1964	-1.9878608625636787
1965	-0.12586217268166422
1966	-3.7473758501168533
1967	6.071849717856509
1968	6.262879763316121
1969	3.037310267206479
1970	0.08526067751111555
1971	1.7211643179606284
1972	3.977370483822412
1973	0.1257821736827509
1974	10.957923391893857
1975	1.5377060222787122
1976	3.5990374209208653
1977	4.073836179033094
1978	5.518359463871647
1979	10.403580719418557
1980	10.086685412625428
1981	13.898906267114313
1982	1.5128717623652932
1983	5.065745336770959
1984	1.2208320915609363
1985	-1.2639944830687568
1986	0.4737115657713815
1987	1.2841893232045152
1988	2.0006225350664124
1989	1.900301180016342
1990	8.276288610690145
1991	5.494014553695408
1992	1.110296627449344
1993	4.074053198863226
1994	6.06215618811143
1995	10.759501964043892
1996	7.959035205473654
1997	6.10580185506025
1998	-7.6252899635555735
1999	3.0754189282908015
2000	0.1236356959331033
2001	2.0450077029621667
2002	2.419365255632883
2003	2.512019791662425
2004	3.6391702336624263
2005	2.6510023455748097
2006	1.8414241103721594
2007	3.6382096407179745
2008	3.973385923565999
2009	3.5340703330320764
2010	3.437074564229192
2011	3.748989315791661
2012	4.1991735090275455
2013	4.206376704630642
2014	4.070003774690335
2015	3.68330243595274
2016	3.9380433684035836
2017	3.9303581620057315
2018	4.125943619736219
2019	4.179227382368552
2020	-3.480656012207646
2021	1.2994431520167495
2022	4.289571826150933
2023	4.1502044731370376