Year	annual %
1961	1.6716648935085203
1962	1.5428845335692025
1963	1.3536947075030419
1964	1.1317939159078412
1965	0.9333057890617101
1966	0.7540387764234866
1967	0.6101888416052171
1968	0.5117994227812739
1969	0.4015873261680471
1970	0.28856042647047314
1971	0.21104378225159393
1972	0.15762375696601524
1973	0.15248590160332778
1974	0.14815237383750005
1975	0.5910067598699936
1976	0.6029746863448353
1977	0.6647552574229635
1978	0.707490310705339
1979	0.695998416214454
1980	0.6019732081498121
1981	0.42179894501702153
1982	0.4533745467146118
1983	0.5044392899093577
1984	0.4126172985140115
1985	0.24913063757209786
1986	0.16528344071814927
1987	0.09534824415392475
1988	-0.1721154213612275
1989	2.436937959170337
1990	3.923075907470709
1991	2.531539144883534
1992	-0.3733002249347659
1993	-2.516007134619852
1994	-1.6316225201392083
1995	-0.7076895252673289
1996	0.0884476607953763
1997	-0.03030090952491605
1998	-0.1453415804560373
1999	-0.2718292465169858
2000	-0.37835878273877943
2001	-0.3311221309481061
2002	-0.48330320679633737
2003	-0.39999385622558825
2004	-0.3213868846179761
2005	-0.32751899563321346
2006	-0.4094281666313134
2007	-0.4565379517369069
2008	-0.42783716221433243
2009	-0.3684973466398211
2010	-0.33522634126049794
2011	-0.31632884381179815
2012	-0.22581665310510454
2013	-0.2417650861379677
2014	-0.25454496173390767
2015	-0.3198243881446002
2016	-0.43609504369186997
2017	-0.5435303339748205
2018	-0.664961111991116
2019	-0.7542001981133373
2020	-0.7889764786505373
2021	-0.8451095312807428
2022	-0.7661810055127357
2023	-0.5465914593485525