Year	annual %
1961	4.295707755151625
1962	7.5770521153600185
1963	7.5452075868345645
1964	8.33880462782055
1965	6.2061304923204546
1966	0.13455258661959135
1967	3.643385303473451
1968	-1.8547856239666487
1969	2.855932987199992
1970	-1.8853275620433863
1971	0.0031517301997610048
1972	-0.8304092954189031
1973	3.2608946240486603
1974	10.626956865024923
1975	-3.236920113880629
1976	1.9971517997135209
1977	5.115086620819895
1978	-10.486029894501797
1979	-28.440544813102917
1980	1.793275105405101
1981	2.437444355715158
1982	-3.4933412928286174
1983	1.9077392964948814
1984	-3.974127616834622
1985	-6.3385202929355415
1986	-3.303845482019014
1987	-2.9596836348985676
1988	-14.443121737133879
1989	-4.026285428035308
1990	-2.378080149224516
1991	-2.483575302147244
1992	-1.8785054434370494
1993	-2.582747669119172
1994	1.1354492677037484
1995	3.743641910494432
1996	4.345238106234547
1997	2.1920054167420915
1998	2.0732020498904262
1999	5.439379117902419
2000	2.611272822492964
2001	1.5819818712074891
2002	-0.515149316447534
2003	1.287031678742025
2004	4.077238037872391
2005	2.9736773502884546
2006	2.7380802746692154
2007	3.6209151360640845
2008	1.9746358960615709
2009	-4.680508875191322
2010	2.8923739181472
2011	4.764208455807932
2012	4.941011884103943
2013	3.40398329346489
2014	3.2787525057989484
2015	3.2966281258759693
2016	3.079609172794619
2017	3.157348612048267
2018	-4.712051830801727
2019	-4.232565456683119
2020	-3.092828014208422
2021	8.791363352955585
2022	2.2911742489098117
2023	3.1165945845570207