Year	annual %
1961	3.1509811140050203
1962	-3.429455250187189
1963	4.739119877981395
1964	6.664133172667405
1965	5.3044103630794694
1966	3.8338010496344452
1967	0.9721642818884391
1968	3.5016312054256815
1969	2.5256081181375123
1970	2.100121608125491
1971	-1.6995101630258773
1972	6.9195922883126855
1975	-5.499348121667381
1978	1.3176498986969563
1979	6.61440407074592
1980	6.42726611803586
1981	9.919816381593918
1982	2.002994698619048
1983	-5.063473765592491
1984	6.16950009844885
1985	8.442502092365501
1986	2.314274223777943
1987	-1.3718712716958947
1988	3.692850842800553
1989	-3.815979951458033
1990	9.556013173111808
1991	4.656459671881507
1992	0.8868978772155458
1993	7.8181685056116095
1994	1.6334499725168712
1995	6.187597485725433
1996	4.368623323307318
1997	6.403730423213318
1998	4.755767480205677
1999	5.560744251703653
2000	5.837893877021671
2001	5.285889722948141
2002	4.357090360501914
2003	3.3989162921343308
2004	4.53801248839838
2005	2.050919208466766
2006	3.78271831548102
2007	5.82082438084386
2008	5.382494368656722
2009	2.094423543210368
2010	1.8918100800484012
2011	3.3838464430574646
2012	4.340477145848581
2013	7.236367221899215
2014	6.4571502688664
2015	1.4143320978927676
2016	3.270774307156941
2017	5.43007787423808
2018	6.795081856070269
2019	6.873905604711709
2020	3.8093484114648106
2021	7.730810456696531
2022	5.895287975408664
2023	6.593835405137739