Year	annual %
1961	0.9892764742766232
1962	1.016399677713585
1963	1.0445563931453155
1964	1.0712318908616287
1965	1.1156823350030483
1966	1.1602108610184394
1967	1.2072754567736559
1968	1.1805909581698262
1969	1.189948744150983
1970	1.0807370263615605
1971	0.9010000309307903
1972	0.7492201204629182
1973	0.6718459567982872
1974	0.6432089474403138
1975	0.6210787058730891
1976	0.6040674409145906
1977	0.5382931021829472
1978	0.531676817395814
1979	0.5369863154291388
1980	0.5434478658315861
1981	0.5626156450711004
1982	0.5820020916622953
1983	0.5983261681245894
1984	0.6193531302370002
1985	0.6468959865555461
1986	0.6671838485378405
1987	0.7011250404658238
1988	1.046648042309036
1989	2.1714337721569397
1990	2.948450616653536
1991	2.984883656977586
1992	3.052739777910025
1993	3.075736845080862
1994	3.0162485533644383
1995	2.6188414606006267
1996	2.4872894472324423
1997	2.651493753112468
1998	2.625164566425966
1999	2.6508881365898187
2000	2.6689737448275537
2001	2.1216800570744843
2002	2.0771894126981114
2003	2.2859018538874336
2004	2.0369126058756435
2005	2.085141167598789
2006	1.8110726887858006
2007	1.63711120290241
2008	1.802035871183429
2009	1.8486782795921877
2010	1.7280888712378741
2011	1.153443922603101
2012	0.45211333371435625
2013	0.15351842481472996
2014	-0.5687307037920551
2015	-0.1027180078431637
2016	1.172565195677567
2017	1.2584117509800141
2018	1.2902835339873016
2019	1.528540095657112
2020	1.7963614893631736
2021	1.3320859889979835
2022	1.3843974215549288
2023	2.010431011285861