Year	annual %
1961	3.556603671064167
1962	1.9677361070098698
1963	2.1689721272544205
1964	-2.5116212235083424
1965	-1.9840521862743827
1966	9.260235815824714
1967	1.5612303122185125
1968	2.0127980605042666
1969	3.4674270076581593
1970	-2.2462572182902676
1971	11.301754916936176
1972	6.0031132750110885
1973	-8.041425313536706
1974	-19.559534063918747
1975	-12.810291188088016
1976	-1.2809532398278236
1977	14.264466720634218
1978	5.9073030487945175
1979	4.92047543762375
1980	5.379311722247323
1981	11.754042257232129
1982	-15.976577940037046
1983	-7.063330046368193
1984	-0.7904706822030647
1985	-2.416298595148959
1986	3.5383859916432243
1987	5.555666168099307
1988	5.325653950111132
1989	8.381971893254232
1990	0.5509402148860261
1991	7.111538776763851
1992	11.970819036540831
1993	5.7697905796767515
1994	6.560334190439491
1995	8.246573596699136
1996	7.943961434791831
1997	6.093970205986764
1998	4.197878388968206
1999	-2.1956448293877884
2000	2.8873941004913064
2001	0.8923374769783408
2002	1.5615951819650604
2003	2.872324549836563
2004	7.616761766612683
2005	6.728146065059121
2006	6.164936533199722
2007	5.451606664757918
2008	2.1669674717550436
2009	-1.5190223081648924
2010	10.26973929098564
2011	8.135950649236733
2012	5.333787561252933
2013	4.3362605065065765
2014	1.3421972585042425
2015	1.3442455434467178
2016	2.0813546643514655
2017	1.9479168932568598
2018	1.9347955196564897
2019	-1.0546297763715842
2020	-8.663656660569814
2021	19.792501669658733
2022	1.0691595488487877
2023	-4.309955164955767