Year	annual %
1961	-0.05138307642083362
1962	-0.05036051921867113
1963	-0.13408694157249101
1964	-0.16157505374276582
1965	-0.24350036912048267
1966	-0.38260092227838527
1967	-0.3798918929767865
1968	-0.39437878911842006
1969	-0.38173784896740415
1970	-0.48340400535676054
1971	-0.4741132844415006
1972	-0.3931899027209482
1973	-0.4071533053721197
1974	-0.4320048265685159
1975	-0.38762174094834734
1976	-0.34264011273269546
1977	-0.3774740061142836
1978	-0.4082902099870438
1979	-0.32532915157783293
1980	-0.2014739547757074
1981	-0.3162137432590697
1982	-0.2792891564234026
1983	-0.2534868344058907
1984	-0.20791519497780087
1985	-0.17893361424290788
1986	-0.15045052885474774
1987	-0.20719124194509675
1988	-0.20781862600539114
1989	-0.04005395709766901
1990	0.055560102219118335
1991	0.11023912288148097
1992	0.05936347154167265
1993	0.013495543053636538
1994	-0.09880206777432932
1995	-0.16713087547105943
1996	-0.12470256520562373
1997	-0.15092055010332217
1998	-0.19286637852907518
1999	-0.23524937997902384
2000	-0.29471932038772763
2001	-0.36616795591956475
2002	-0.4651363907659629
2003	-0.42569886442416305
2004	-0.40097171188918423
2005	-0.4070161535953787
2006	-0.40258474975328795
2007	-0.4042991944266987
2008	-0.3037253872011405
2009	-0.28995647697828986
2010	-0.2735073345242398
2011	-0.3623214772083685
2012	-0.22330394819715593
2013	-0.1474778250359634
2014	-0.13533011066384404
2015	-0.1660716717345707
2016	-0.20158635137315173
2017	-0.28172638799912875
2018	-0.3268593608106869
2019	-0.4008911326786091
2020	-0.5034161305259914
2021	-0.6563463650472414
2022	-1.2775107164202382
2023	-0.5581665292683056