Year	annual %
1971	18.20153097344172
1972	22.116847409384548
1973	56.948759566702876
1974	2.7658060790584784
1975	-3.828343245916926
1976	3.0973069070140866
1977	5.51613893812582
1978	-13.61178170279004
1979	7.183879470107726
1980	10.975305919435357
1981	-3.5344863677013336
1982	-12.124831555595861
1983	-10.111763339328405
1984	-1.6086399932511313
1985	-8.570465037842439
1986	-20.120819940184518
1987	-3.6512854548861498
1988	-8.852247082813847
1989	5.55695437762671
1990	11.583141339082317
1991	-4.575279927750415
1992	-1.9217512692435008
1993	-3.6146208149123
1994	2.0429573677563297
1995	2.0870472960334183
1996	0.09272075187811879
1997	1.3594914381602763
1998	-5.716708530357323
1999	-2.9589573063919232
2000	4.836129647733188
2001	-3.851554140292194
2002	-2.625471694675497
2003	3.671047169151848
2004	4.630576274858782
2005	-2.1904206134813506
2006	-4.017715399884096
2007	-13.923387402839936
2008	-13.287427562873575
2009	-17.145393897890344
2010	-4.256385864607211
2011	5.058808711497377
2012	0.7696388470381521
2013	4.012692145430691
2014	3.174202486920791
2015	5.817357871325868
2016	4.653505395001645
2017	-0.08732607137450543
2018	0.517239888701809
2019	0.3236865268068527
2020	-5.731044521616241
2021	3.4872146628586336
2022	6.9824174662305865
2023	2.580896071862398