Year	annual %
1971	4.772031794553982
1972	6.045527179636693
1973	8.572313011078435
1974	6.063072195586059
1975	1.4241409069741735
1976	5.104783930622304
1977	2.054236849260178
1978	2.477493648578033
1979	4.765711076054529
1980	2.1319880318144726
1981	1.84207100952311
1982	-3.997746197074747
1983	3.342891140773375
1984	5.317329289464652
1985	4.505922206488577
1986	0.92634597244205
1987	5.1968145129462755
1988	4.845137903270896
1989	2.634998136927152
1990	-0.519563237276401
1991	-2.2418215242834094
1992	0.24463107986167643
1993	2.4031418520640955
1994	4.1357790075176695
1995	3.8310053493453324
1996	2.3261325726395796
1997	4.1421726201805456
1998	2.027534411161966
1999	5.737684845174982
2000	7.896863020327174
2001	1.1620816798448885
2002	2.2216195245368766
2003	3.685637267428433
2004	4.909170266839368
2005	4.535959606175638
2006	3.3995752104480914
2007	3.116927075913395
2008	2.4578820826505705
2009	-6.146805249792408
2010	4.445763211414928
2011	4.250366789283007
2012	1.4171832195725784
2013	2.799667837057342
2014	2.2846927633142684
2015	-1.5905892134311443
2016	0.9688721492242962
2017	4.207454158249703
2018	2.5043110655045666
2019	2.1127089008277693
2020	-5.5402285328122645
2021	9.199058115596117
2022	4.866371098278677
2023	-1.1171877240695807