Year	annual %
1961	-1.3816910887253704
1962	-2.6323240545704936
1963	-2.7888024974107624
1964	-2.9038900219912485
1965	-2.978526864356715
1966	-3.0722583713297493
1967	-3.138927477906729
1968	-3.243719277645813
1969	-3.363266679630978
1970	-3.5584411797514788
1971	-1.7383697916407377
1972	-0.7118296912387465
1973	-0.7870691923305624
1974	-0.8762547529122131
1975	-0.9581000430353079
1976	-1.0512800064931005
1977	-1.104920202814806
1978	-1.1595828302593658
1979	-1.2083073146111656
1980	-1.24178111814217
1981	-0.480870873917424
1982	-0.08219494362456488
1983	-0.12040719148375893
1984	-0.1712444612262184
1985	-0.15265040074209815
1986	-0.09749941252383496
1987	0.011846086583551255
1988	0.08313515735380024
1989	-0.04399424115826604
1990	-0.11124733426948258
1991	-0.6315091386642115
1992	-0.8754860631593882
1993	-0.8641052869090058
1994	-0.8963900273790737
1995	-0.7470236324750162
1996	-0.5477604889600196
1997	-1.066799218276584
1998	-1.586915126618534
1999	-1.5095244664168619
2000	-1.2142146680349124
2001	-0.9981549595254232
2002	-0.974971097147945
2003	-0.9335097941148068
2004	-0.79313242681071
2005	-0.5476426848975919
2006	-0.4341143873135297
2007	-0.26161025466240445
2008	-0.10425005336722265
2009	-0.09380075454774042
2010	-0.1183535112590163
2011	-0.4064009735941924
2012	-0.747075207923212
2013	-0.859192880444019
2014	-0.9532032836548285
2015	-1.0930610484124432
2016	-1.2247593854913668
2017	-1.2990924885020059
2018	-1.4414612780526785
2019	-1.4197239609906807
2020	-1.4921274873520114
2021	-1.536236345270558
2022	-1.1676135287196974
2023	-0.9087965045697187