Year	annual %
1961	5.990640686612636
1962	2.1668909635159395
1963	2.6610284148367924
1964	3.5294619067100257
1965	0.9321906164762908
1966	1.3961564518723009
1967	1.7868887983711232
1968	2.291765958121701
1969	4.450762272122262
1970	5.6117011322972274
1971	3.5306936544661056
1972	2.4166176825586945
1973	2.2919679784622247
1974	0.91002069859492
1975	-7.24261314250127
1976	-0.8384898754111276
1977	2.7815026433829075
1978	0.40006839703264063
1979	2.2859061840209733
1980	4.1874531996961935
1981	1.0470280646808448
1982	-1.884376957513183
1983	0.20847519314828844
1984	2.6392044333461513
1985	3.2169450531938963
1986	1.3299457512098343
1987	0.9494037204004684
1988	2.5213469205448433
1989	3.490643162013413
1990	2.615466198634792
1991	-2.146489920634309
1992	-1.1397190696595487
1993	-1.0314223650806156
1994	0.4656864037770845
1995	-0.18835074385067685
1996	0.028540638847871946
1997	2.0152831609876642
1998	2.7242846564736993
1999	1.1790059356515457
2000	3.3761572949790235
2001	0.9349496531454236
2002	-0.8262804281674647
2003	-0.771333169072193
2004	1.9981320556157414
2005	2.093586607430268
2006	3.4225506597861397
2007	2.99182202308279
2008	1.5099507937971595
2009	-3.510558860201982
2010	2.1736381639678655
2011	0.6873398696379525
2012	0.11059660430612439
2013	0.6283606754370084
2014	1.1086935944004637
2015	0.4941298223927646
2016	0.9601316731782532
2017	0.4213261630564773
2018	2.1055247201241514
2019	0.4230897682273138
2020	-2.854158322264425
2021	4.588192117893698
2022	1.7360013003389696
2023	-0.1271398681439706