Year	annual %
1961	4.05165977024636
1962	3.9197904756105415
1963	3.795206666050631
1964	3.705543584664714
1965	3.5820769650221087
1966	3.798295282012524
1967	3.62485224767365
1968	3.515825116220015
1969	3.3793597743679267
1970	3.285376197844027
1971	3.0835610137145406
1972	2.011115484376596
1973	1.9591576240191704
1974	1.934079681415858
1975	1.8861174826655698
1976	2.0933618713821747
1977	1.9730772198293702
1978	1.8892224151893813
1979	1.8159230516754992
1980	1.7324771654518327
1981	1.782174723705113
1982	1.343484475962558
1983	1.240021383864995
1984	1.1419617983783026
1985	1.0497889439892476
1986	1.2700776530097566
1987	1.1289979548794518
1988	1.0196552355382917
1989	0.9404265600475056
1990	0.8848778197412872
1991	0.844698222110208
1992	1.1087287000098578
1993	1.1256944899822097
1994	0.8943607587393826
1995	-0.9902885796545241
1996	0.3335235802636275
1997	0.1490387103831345
1998	0.04979019887707187
1999	0.06331974409018988
2000	0.10587250252817536
2001	0.24974454342130914
2002	0.3277891698404327
2003	0.20356408070845897
2004	0.18499899305513245
2005	0.1124266490939486
2006	0.01793165251965502
2007	0.005860135036652176
2008	-0.0179056611545222
2009	0.005137606809108352
2010	0.000673356085296102
2011	-0.38657798864192006
2012	-0.23026720481755972
2013	-0.2826741395650351
2014	-0.26417192071419304
2015	-0.29166565742066497
2016	-0.31922086086805085
2017	-0.2959760681796104
2018	-0.2785722370209686
2019	-0.23754908077902215
2020	-0.3360309352811679
2021	-0.5811763597496019
2022	-2.125951872073896
2023	-0.27791207480294844