Year	annual %
1971	3.1900415048288835
1972	0.25495590179403393
1973	-0.4242209586590917
1974	3.528398345493727
1975	3.1146664823424146
1976	-0.7159079126259655
1977	20.381943424068055
1978	0.2765332121880988
1979	13.455915427270227
1980	-3.3129053322856805
1981	-12.086462009054998
1982	1.294065764632407
1983	-5.483719601566463
1984	-7.6913855964292
1985	7.136587592716765
1986	-7.870755093436472
1987	-5.229663522944719
1988	-0.5870228657666559
1989	0.5605551493407717
1990	-4.508924322321761
1991	-1.0526772732388565
1992	-1.3549057908927296
1993	-0.8986222648610891
1994	0.25714722460681116
1995	0.15203229999207224
1996	-0.25023262955889436
1997	-0.6500669352834052
1998	0.9352442526338507
1999	1.0413785975249112
2000	-0.8838232959037811
2001	1.2717893089433403
2002	0.8886379636268344
2003	5.530037119609517
2004	0.9543332701000367
2005	3.9881647653001693
2006	6.208915741344384
2007	1.1273980547934457
2008	3.689731271395729
2009	0.9107679343610187
2010	-0.7850824518557573
2011	-0.14203234355430538
2012	0.8398781111993401
2013	3.040169234841514
2014	2.919601342243027
2015	-0.29143919030804
2016	3.373778771439916
2017	2.409414678001866
2018	2.744391173120178
2019	0.4669840363334572
2020	0.7276413063493266
2021	-0.14045003644015708
2022	-1.8151773730593703
2023	-2.3957923812016872