Year	annual %
1961	12.189789001858532
1962	10.094523484700838
1963	26.37481301834854
1964	3.182585430426469
1965	8.352509146693276
1966	13.081202310400561
1967	6.372606048518895
1968	12.898286547575646
1969	6.026958703915562
1970	9.149803559852247
1971	21.147522033236203
1972	16.678840762822283
1973	20.181041411107824
1974	28.1859777558778
1975	22.246811750988005
1976	15.634330481344277
1977	13.437228876659113
1978	19.82240111230464
1979	16.1667462157046
1980	18.53917288028841
1981	22.735335790743754
1982	19.87423099513767
1983	16.39180221797553
1984	11.677889929606144
1985	14.399937198586679
1986	4.910252656117878
1987	14.922202797202797
1988	17.523256079287446
1989	15.470095369960593
1990	7.6485053264060525
1991	5.80264389188009
1992	8.328270706088864
1993	6.135600925429721
1994	8.06822956847834
1995	6.570094032327453
1996	13.349427124843762
1997	16.504817705948422
1998	5.441691181936524
1999	18.871996730110514
2000	14.138590777921936
2001	18.367241199756553
2002	3.10810755198832
2003	4.739647969332504
2004	8.155436127788537
2005	11.169528666998088
2006	11.767335567349752
2007	13.374679995817951
2008	13.33146981969576
2009	12.853809358190615
2010	11.754481466611981
2011	9.580765377068577
2012	8.065663163122613
2013	6.242440376919293
2014	7.946829903430247
2015	5.412539753212523
2016	8.0401615104041
2017	11.964408418050814
2018	7.113931840652343
2019	10.947581497215971
2020	10.312212913935975
2021	8.683288222818572
2022	9.133878255906374
2023	8.953603884454578