Year	annual %
1961	2.416218411460414
1962	2.4364727480013584
1963	2.4402026852546745
1964	2.398797211800299
1965	3.1712115338725386
1966	3.962151184867862
1967	3.530930346335933
1968	2.8608092990239147
1969	2.782185240562297
1970	2.8054583548272927
1971	1.9714864325487722
1972	1.8686949392024181
1973	1.711651386407027
1974	1.564557802275809
1975	1.5015987345754511
1976	1.4144293791071885
1977	1.2022898630622585
1978	1.4682176068046342
1979	1.9199073116985175
1980	1.9820724183796248
1981	2.0093184939507616
1982	1.9524965125896157
1983	1.8245942961537185
1984	1.851898022811164
1985	2.480964281461804
1986	3.4252795098617774
1987	3.39746668427741
1988	3.2182574795787566
1989	3.052373181607849
1990	3.124531243471109
1991	3.2337642087662
1992	3.049745155494544
1993	2.8528576164248753
1994	2.6374075330823183
1995	2.2841159247294645
1996	1.6590004230497346
1997	1.4488253409492393
1998	1.2403197549579446
1999	1.0446782674197053
2000	0.7805704146300869
2001	0.08271319306436642
2002	0.034728931260485985
2003	-0.06800175403248923
2004	-0.1792764765947064
2005	-0.28082596946985194
2006	0.7879435585692167
2007	2.7300884872968254
2008	2.9174124327577258
2009	2.9036928679030107
2010	2.8818123162006177
2011	2.841268368092928
2012	2.7742834931674065
2013	2.6781680573348035
2014	3.239522913888941
2015	3.736836064332209
2016	3.5030918394252533
2017	3.2257713975154325
2018	2.891171437368746
2019	2.250308355751696
2020	1.225282130505907
2021	0.6228494420769357
2022	-0.29379418055835377
2023	-1.2764522522796664