Year	annual %
1961	7.898841131863047
1962	8.06231918135958
1963	8.203508461180496
1964	8.228744561786986
1965	8.291245063316275
1966	8.335818162313439
1967	8.397261277007493
1968	8.412307084150415
1969	8.449231986914368
1970	8.457678058843106
1971	8.456332801636133
1972	8.457649207552894
1973	8.426643588512949
1974	8.420348101199556
1975	8.402431270609934
1976	8.405753831359515
1977	8.362016488155072
1978	8.357665239778996
1979	8.294978036267457
1980	8.21701929783627
1981	8.120116628587798
1982	8.04522463920449
1983	7.9737805908655535
1984	7.929417937302444
1985	7.829392271276091
1986	7.771032576382031
1987	7.703481737283606
1988	7.606554188357596
1989	7.508872728717924
1990	7.221604168232859
1991	6.255810385083168
1992	0.6517080466441969
1993	-0.19496466700472728
1994	4.545124825862637
1995	5.617289694995872
1996	6.2479799214131475
1997	6.038129003694576
1998	6.126641690614709
1999	6.668221044489608
2000	6.9578805637824965
2001	6.785950001489854
2002	6.622113339853063
2003	6.4603702523108835
2004	6.312419797069943
2005	5.747807397177195
2006	3.870600750746479
2007	3.592242126219805
2008	3.5195862796098605
2009	3.446702647515307
2010	3.3933861785306734
2011	3.3525467602809416
2012	3.2742928906362345
2013	3.1845081037700305
2014	3.068313218549879
2015	2.9195856607552764
2016	2.7894108293287885
2017	2.7015276541538036
2018	2.5833050037859024
2019	2.439369530037514
2020	2.33326226370416
2021	2.2645102089560116
2022	2.201199781639198
2023	2.141762739945386