Year	annual %
1961	3.165794587952192
1962	4.3144204824290995
1963	3.7950028484321336
1964	5.167667445515491
1965	4.333384762422199
1966	4.424320315360461
1967	2.764434763052421
1968	4.856073285521134
1969	4.605068716245128
1970	1.7527217073150467
1971	2.5795816261472453
1972	4.326221174357585
1973	5.14982974598739
1974	0.058281015811957104
1975	-0.8361296308600998
1976	4.012248491672011
1977	3.066736496155414
1978	3.5842838841714695
1979	3.077529500645923
1980	0.3954905985928292
1981	1.272064553181366
1982	-0.40983826880790275
1983	2.5758975000779003
1984	4.25181072256251
1985	3.1925512470622976
1986	2.6277214031430276
1987	2.955769314129469
1988	4.066632419971938
1989	3.1639895550373893
1990	2.053115778027447
1991	0.2863370837186352
1992	1.1964174087831339
1993	0.5067931926713101
1994	2.5496071381169543
1995	2.1515706196561126
1996	2.3584936601220647
1997	2.8875815239705105
1998	2.3380710716839985
1999	3.0356310636762345
2000	3.516951463338131
2001	1.0492218764142507
2002	1.0234947960254175
2003	1.5139875617734333
2004	2.6826105051396922
2005	2.253760137475652
2006	2.368980242078962
2007	1.9462114028081885
2008	-0.24560721791949902
2009	-3.8838782759235357
2010	2.4350992625341092
2011	1.3893283839417165
2012	0.8353240994037492
2013	1.0665238826987462
2014	1.549347804233662
2015	1.7678021214856159
2016	1.3380461085714614
2017	2.075381753262235
2018	1.8880027025031154
2019	1.4750238765854533
2020	-4.477194227343773
2021	5.529276842707503
2022	2.624350660337811
2023	1.2238421485256197