Year	annual %
1961	-0.27322421368729505
1962	-0.5143162374467479
1963	-0.6552877388723786
1964	-0.5203827875026998
1965	-0.5580760909138996
1966	-0.6315810468123854
1967	-0.4940024160597564
1968	-0.6031595365798902
1969	-0.7859990447376966
1970	-0.6477172699030331
1971	0.5759555158366908
1972	1.8140280469100392
1973	2.0583318696755537
1974	2.1182889765138135
1975	2.3388971286594353
1976	2.478926674577007
1977	2.356046579355184
1978	2.363294068232172
1979	2.1885371973889973
1980	2.1710889943243017
1981	-0.17667849118858392
1982	-0.1179593177178794
1983	-0.44359085011377214
1984	-0.8034561894586971
1985	-1.111623284021803
1986	-1.4914292581789403
1987	-1.7633867601069306
1988	-2.081437489527199
1989	-2.4190826460202666
1990	-1.945009394874991
1991	0.39867162438213827
1992	0.5620778560734365
1993	0.2634179988783605
1994	0
1995	-0.3293810619561496
1996	-0.5624497871362335
1997	-0.7660320556492763
1998	-0.940551105638283
1999	-1.0858606862672835
2000	-1.201318720528548
2001	-1.0413145117489868
2002	0.5567168171350154
2003	1.001216718615588
2004	0.6505758265489864
2005	0.3747236542882071
2006	0.13591575316919616
2007	-0.06793478522142903
2008	-0.23813584990666015
2009	-0.40955688647370825
2010	-0.6519151583657551
2011	-1.0032950445074253
2012	-0.6278360351124551
2013	0.10491345602975602
2014	-0.3501404137438286
2015	0.03506926215146224
2016	0.35001785822096204
2017	0
2018	0.03493449817187467
2019	-0.06988120480047944
2020	-1.0541207938210604
2021	-1.7459912628511405
2022	-2.217063370014195
2023	-2.643981980297844