Year	annual %
1961	4.043927977549245
1962	6.128798780245063
1963	-1.2680163726918892
1964	2.2828192237583664
1965	3.76454538063129
1966	0.537613083660716
1967	8.823314974853673
1968	3.0707739378289745
1969	2.026081040526975
1970	0.11701961067960553
1971	1.413339881531897
1972	2.3114987415627724
1973	0.44932740448064123
1974	8.286426480363772
1975	2.998382897073455
1976	8.53489496068103
1977	0.37035356366278904
1978	4.607824999656842
1979	3.6646215120786536
1980	0.7968788785792214
1981	4.255303394555824
1982	9.562196621811793
1983	0.34598474020850745
1984	-1.778696687729365
1985	8.517364991123216
1986	7.955362728748398
1987	-0.2363367891433228
1988	5.795592964580052
1989	2.1502672717350606
1990	-0.6029284775809884
1991	9.069984458774357
1992	0.23271076184595074
1993	3.461384939458185
1994	1.3150072721026476
1995	5.716373862696216
1996	11.014743869558032
1997	6.316834734837684
1998	7.3077196349689615
1999	7.395237801119308
2000	1.8884738890652528
2001	6.61340574539679
2002	4.352963829880991
2003	7.802493888703594
2004	4.478452136703865
2005	8.661873228412247
2006	6.2531646881747776
2007	4.111379017615164
2008	5.799991741053873
2009	2.961950858666924
2010	8.446281577076249
2011	6.622562613066933
2012	6.452672379531464
2013	5.792584845098673
2014	4.326845614529759
2015	3.921228793793503
2016	5.95797670754024
2017	6.203489411218683
2018	6.604569068123411
2019	5.8892049704591045
2020	2.010772624118445
2021	6.939155246757792
2022	1.7779154377854667
2023	2.9601800132207785