Year	annual %
1972	3.827421138468239
1973	7.365807240796514
1974	-0.5324203703229671
1975	0.8444881210354822
1976	9.441732983669596
1977	-9.749606779086946
1978	19.88153145045912
1979	14.13323364090644
1980	-2.340538921200647
1981	-3.081576121731871
1982	-3.78222947908678
1983	-1.0299761478120644
1984	3.1127337698453346
1985	9.781566680875287
1986	-0.427827403908438
1987	-0.9782172514358365
1988	4.389265243698588
1989	10.976904734352374
1990	8.323685829927925
1991	2.0762736564071247
1992	7.445717616992425
1993	4.943733110229488
1994	-3.63816221609531
1995	-3.8605719040627093
1996	9.321629248345147
1997	11.754181102341505
1998	-0.7400360867774793
1999	-0.6377960051945024
2000	2.161649208258936
2001	-0.09737434390841315
2002	-8.418806838035493
2003	-1.2137293760492156
2004	4.525609431095788
2005	8.444182336384756
2006	7.104663865653464
2007	0.19716723363860922
2008	-6.317549862999911
2009	-1.2528361207559442
2010	2.7017019641483415
2011	10.683443713880393
2012	9.402327795131214
2013	-6.471433501652001
2014	2.345286222660107
2015	7.165697841421647
2016	9.475294163055636
2017	5.720441429973604
2018	5.932686080198195
2019	5.4481470451861185
2020	-12.248172445603572
2021	-1.0968656383583806
2022	-3.624266438717754
2023	5.465042151086877