Year	annual %
1961	2.333834839806599
1962	3.7463610925704245
1963	-0.044897688094167165
1964	5.468070797226602
1965	-0.4282938119457782
1966	-2.2000983583473754
1967	0.35486849024457
1968	1.7522291393348866
1969	2.434934800163063
1970	5.5631973510626835
1971	2.230848374377146
1972	-4.782853075321441
1973	1.9815530600174327
1974	12.604821424182575
1975	10.962500123384046
1976	4.404910479838193
1977	0.9219448380550546
1978	-0.4391389738435265
1979	5.053239215311251
1980	5.014662164616254
1981	4.584960864027195
1982	0.5130648115262204
1983	-6.169202646243406
1984	-0.7473049010161503
1985	1.4315052209146586
1986	-2.245162173478235
1987	3.759329403435217
1988	-5.1271840753497315
1989	-2.2138448602054552
1990	3.704687080521012
1991	1.7418833280628405
1992	-1.079070323665647
1993	1.1402210215002242
1994	2.500185800226035
1995	2.0593050146444227
1996	-0.5717115844712879
1997	4.079394521165838
1998	5.027724560015685
1999	-13.69857410726695
2000	-0.9080782658897562
2001	-10.895794655784698
2002	6.783879246947649
2003	1.5930226485785681
2004	-1.6488064843686487
2005	2.4288951720726715
2006	2.6163940356524193
2007	2.3188405948681776
2008	3.904395789798258
2009	-0.044711563552027656
2010	5.483709979162072
2011	3.6855892313921004
2012	1.9647139687293986
2013	3.6194008476615522
2014	2.01080405165024
2015	2.5424148916316938
2016	-7.227914920087912
2017	5.196931467992911
2018	0.16621408056398934
2019	0.1990863610748903
2020	-11.856181652023636
2021	10.035529633375091
2022	6.154870363582376
2023	-4.123417487727323