Year	annual %
1961	3.267686585306933
1962	3.788316198833243
1963	6.107485890671654
1964	6.52919277612844
1965	2.0717065792276372
1966	1.4026540151904214
1967	1.6343439843900143
1968	3.9008612963252034
1969	7.881647409109178
1970	7.2038877089632365
1971	4.808020436711928
1972	1.7139971497052784
1973	4.5767905845999195
1974	4.84582275933974
1975	3.502250272530304
1976	5.490041860959096
1977	5.717253604843805
1978	3.777663023353739
1979	1.5636775831699055
1980	5.2353194649081445
1981	2.0108428031031025
1982	2.2249698433340086
1983	2.2731491685186853
1984	2.698000140450361
1985	3.9788056810966026
1986	3.8523237333114793
1987	3.6124825048407416
1988	6.705127587881819
1989	3.6776778307559397
1990	5.120127451960954
1991	2.09769222856886
1992	3.695527178543159
1993	2.3544996927062414
1994	4.012834654565054
1995	5.11675964995861
1996	6.346908290748303
1997	3.9756442052945715
1998	4.526386285712846
1999	5.359801120754582
2000	4.2060355065856925
2001	4.344863668317828
2002	4.512912905183214
2003	5.939667475203819
2004	7.0838006716481345
2005	6.705588214507912
2006	6.96132584749607
2007	6.8932257128980154
2008	4.583618133228342
2009	5.945314193750136
2010	6.862810352590515
2011	4.754317781021868
2012	5.161024513761376
2013	5.67444382737736
2014	6.112484281876405
2015	5.933648595540063
2016	5.692524360823043
2017	5.45719053900649
2018	5.438936721800786
2019	4.05632316283419
2020	-3.5853094305918063
2021	6.6513506094125034
2022	5.822306681205248
2023	5.291647255902149