Year	annual %
1961	0.911525536470683
1962	1.22493081884298
1963	1.03901066517559
1964	1.11990124963074
1965	1.1376686982108
1966	0.71987626682955
1967	0.328903404633494
1968	0.2549025372326
1969	0.490087859971103
1970	0.493889466721461
1971	0.953656918277231
1972	1.21304031189342
1973	1.10466656648279
1974	1.30405816817688
1975	1.09244783943894
1976	0.494942519180953
1977	0.173662846984142
1978	0.179439197124502
1979	0.234251269062172
1980	0.355980931791434
1981	0.294773135465379
1982	0.082107428492381
1983	0.0265336520751997
1984	0.1027856081308
1985	0.193256818675591
1986	0.44867099908019
1987	0.648083393492208
1988	0.725614578503426
1989	0.972627746123582
1990	1.25174570700817
1991	1.33968316953886
1992	1.32834757125223
1993	1.34238702924688
1994	1.36184013740089
1995	1.40474246355929
1996	1.36114394109864
1997	1.25350248369427
1998	1.24387080269218
1999	1.35062128530242
2000	1.34408299573143
2001	1.19045634528707
2002	1.04766081596443
2003	1.21520087964639
2004	1.42133256471314
2005	1.53005466340868
2006	1.59505191774492
2007	1.54438684650549
2008	1.78749663225793
2009	1.85177523043645
2010	1.8254058035237
2011	2.22266050326725
2012	2.40154189982875
2013	2.31117625275217
2014	2.35697870484045
2015	2.35995118136865
2016	2.15531198799205
2017	2.43097641776115
2018	1.92883751398765
2019	1.9628449198635
2020	1.66635867423273
2021	1.51834936706612
2022	2.01666790212729
2023	2.34600975458798