Year	annual %
1961	4.44310986802712
1962	3.3203231674420874
1963	3.219864108549322
1964	3.2190760526129165
1965	3.1398614194705505
1966	3.0367191613122504
1967	2.9356366353874486
1968	2.835962243688053
1969	2.7989464632295133
1970	2.4356926385119415
1971	2.7150294238231383
1972	3.3361868008042306
1973	3.397517065968641
1974	3.4177568994916503
1975	3.3899538240278546
1976	3.3531955743909583
1977	3.3028401258618403
1978	3.220542474720485
1979	3.1491289060883125
1980	2.9332362701562062
1981	2.0190846359447447
1982	1.66316024713379
1983	1.6077016366367534
1984	1.5607315837972453
1985	1.5359599029122557
1986	1.474042397210396
1987	1.4024345626003694
1988	1.3667248821009663
1989	1.3095374362640004
1990	1.2590435967804219
1991	0.587734052793531
1992	-0.07501459614824571
1993	0.2758946540778144
1994	0.286306364461002
1995	0.1847979264082361
1996	0.10372275240628041
1997	0.0783306714166616
1998	0.025942976298711472
1999	-0.00625467043029163
2000	-0.24377578251167023
2001	-0.30757702264983033
2002	-0.3037778271670222
2003	-0.3339822956417921
2004	-0.28925156110330874
2005	-0.25977077513760205
2006	-0.2675340080036809
2007	-0.24370378409050494
2008	-0.18606086061282096
2009	-0.14109902258544244
2010	-0.40845113144313117
2011	-0.35680691081301846
2012	-0.08741647762927622
2013	-0.1508000991531193
2014	-0.16189507813165374
2015	-0.11072164761168639
2016	-0.025218450252878555
2017	0.05292745931311549
2018	0.09196622718649737
2019	0.14093044068214347
2020	0.14342410223534913
2021	-0.10081187304094767
2022	-0.11962640449607652
2023	0.12634581111701024