Year	annual %
1961	2.5416309328943587
1962	2.55886184317182
1963	2.424610246543969
1964	2.463121423285725
1965	2.523101200397071
1966	2.5301739403587162
1967	2.497857513769258
1968	2.4402800141009555
1969	2.3489581594179794
1970	2.2970536076453736
1971	2.253769264927034
1972	1.5719472415400857
1973	1.5695817846989357
1974	1.5229338104536965
1975	1.4398833931256667
1976	1.3157450956675298
1977	1.2535524806566474
1978	1.1962917105391109
1979	1.0692520176194873
1980	0.7852786624664267
1981	-0.03476005675969762
1982	0.17482851218789738
1983	0.9899316469601519
1984	0.9965415944228809
1985	0.9926692761555636
1986	0.9336257531614739
1987	0.9332560003293631
1988	1.0174392298625832
1989	0.9133105127703633
1990	0.7916493056899985
1991	0.7038390505015142
1992	0.6119211538329754
1993	-0.8340303984828271
1994	-1.5888605320289895
1995	-1.7881714618559548
1996	-1.9733990832028165
1997	-2.096144540373848
1998	-2.2251450674082522
1999	-0.6720728273859694
2000	-0.7588502224016483
2001	-0.8568102618148357
2002	-0.9797631760471958
2003	-1.1186585626000394
2004	-1.2480963712829112
2005	-1.3649156982245754
2006	-1.4714154222828597
2007	-1.4040160561766777
2008	-2.0626037261517447
2009	-2.1066933684386018
2010	-2.146587279879774
2011	-2.178774627097695
2012	-2.203757268399037
2013	-2.226963885515703
2014	-2.2713252460829443
2015	-2.3432875560294346
2016	-2.3675684512255026
2017	-2.400927196728798
2018	-2.484022672374004
2019	-2.556532205952096
2020	-2.3953552620004257
2021	-2.2307314278643795
2022	-2.188145494391627
2023	-2.0625776214083587