Year	annual %
1961	2.189940492595227
1962	2.1987465582311785
1963	2.1937363803658627
1964	2.209304382515384
1965	2.2256716747520784
1966	2.224776381771676
1967	2.220084856180833
1968	2.239631750936695
1969	2.201167288523692
1970	2.106416585948949
1971	1.8094737658739746
1972	1.8237643440415638
1973	2.074083609173158
1974	2.092059266546741
1975	2.5294689736787177
1976	1.8537131340157629
1977	1.8515457246157894
1978	1.9824647967417803
1979	2.0767622272712742
1980	1.7253376052524914
1981	1.689011150406202
1982	2.1371774280557645
1983	2.258090356762125
1984	2.1942448419667784
1985	2.1039029198213655
1986	2.0228779658952476
1987	1.9950971319122175
1988	1.9353603889227031
1989	1.971710700701152
1990	1.9612841794081248
1991	1.9627391169552197
1992	2.1793994750406256
1993	2.297507132073264
1994	2.157189403154163
1995	2.0811949747532594
1996	2.0892206289436075
1997	1.9980694966942707
1998	1.9661177460710917
1999	1.986683518697376
2000	1.917807885420359
2001	1.8495328824242847
2002	1.976565229475824
2003	1.9752252135752002
2004	1.8552877654844906
2005	1.8075670555719228
2006	1.797270391176781
2007	1.792860158043581
2008	1.608734509683444
2009	1.6022321147136864
2010	1.6276976884107626
2011	1.6886782963388924
2012	1.6698255096704742
2013	1.5820830464344766
2014	1.5404593284584394
2015	1.489487970868609
2016	1.5402544880208922
2017	1.551346415461822
2018	1.5378219713393975
2019	1.5437695117231698
2020	1.544642390736911
2021	1.5112400040867726
2022	1.410597831516796
2023	1.3616311180484075