Year	annual %
1961	2.9919022548593284
1962	3.0153976563773806
1963	3.0074730419363807
1964	2.9889707495648956
1965	3.6983005019020245
1966	3.32447408581071
1967	2.9591723303894466
1968	4.640599867474656
1969	4.556380230265683
1970	4.678971024799676
1971	10.735075596144494
1972	10.656704330168559
1973	10.46165602608351
1974	10.332918076015654
1975	10.273054458594922
1976	10.186995542455648
1977	9.96006050571611
1978	7.733995865887448
1979	5.674417769226146
1980	5.735565012725421
1981	5.756870814480904
1982	5.703832051013097
1983	5.577741651893994
1984	5.6095317984541495
1985	5.3300536981902775
1986	3.8383467072967195
1987	3.809132137852246
1988	3.6306968675336746
1989	3.4661502140670652
1990	3.301865046086231
1991	2.8992943552614747
1992	2.720067472953579
1993	2.518078221977571
1994	2.306015888505975
1995	2.556611895767606
1996	3.5918680341615343
1997	3.3673215106587806
1998	3.167560137788191
1999	2.9709615993340934
2000	3.65346941142273
2001	5.768706365582629
2002	5.728838498519746
2003	5.6252619256650265
2004	5.5234317448640935
2005	5.408116132482448
2006	5.422619187247686
2007	4.513871781881762
2008	4.710607738826832
2009	4.692119189359394
2010	4.668703024905988
2011	4.628708468440797
2012	4.566641303425131
2013	4.461913011456399
2014	5.028559544324311
2015	5.526362663265106
2016	5.2939785636757835
2017	5.014314947483766
2018	4.680509203400014
2019	4.041588631074411
2020	3.0146307558326058
2021	2.4140226796253903
2022	1.496245691902483
2023	0.512565364642184