Year	annual %
1971	-4.369672614895862
1972	6.116219776977715
1973	-0.1058671653485419
1974	1.143161183509548
1975	1.950196832746883
1976	-1.2513606820294711
1977	-12.836442282539593
1978	6.327041820824178
1979	-1.3911855880800346
1980	-16.949742220196384
1981	16.280247743789403
1982	2.5407786827507124
1983	-4.922399208802446
1984	7.40821191142949
1985	2.5604026164509435
1986	-2.3169037854476784
1987	1.3166127465589597
1988	2.9726818394880894
1989	4.421535775783255
1990	4.431260290389957
1991	2.9527518294221835
1992	-1.770995546633273
1993	-1.1711272466762068
1994	0.08813667702538908
1995	1.8204213744030824
1996	9.312237372343702
1997	4.499167701126041
1998	-23.862317635867058
1999	14.64588465646679
2000	-0.9018515023355889
2001	2.5749641452417364
2002	1.3724945886699516
2003	-2.5577528850457156
2004	-1.183212135724645
2005	4.033933661504022
2006	0.17057708423142515
2007	-0.019490528376948646
2008	1.8659393793686547
2009	-0.15249761194338873
2010	2.908390722869953
2011	5.277345744219318
2012	-4.311709916125679
2013	0.5170159626193964
2014	-1.6738705068358541
2015	3.4281111547808507
2016	2.6871797591976048
2017	2.265238462041495
2018	1.3288509418936485
2019	2.086965815701717
2020	-0.7844987270738955
2021	4.082019690530771
2022	1.9807064085842114
2023	2.0538183481949375