Year	annual %
1971	3.0580934358653877
1972	5.77670309587775
1973	8.768435034685822
1974	-3.5170901935992873
1975	-7.718155887462942
1976	2.428621009721894
1977	-3.4002650255969087
1978	-0.006592743915177834
1979	2.1942282188081066
1980	-1.629944482274368
1981	3.8397641766767237
1982	-2.0047055613892013
1983	2.906619259324316
1984	1.6863608038200937
1985	-0.8508232117053751
1986	6.65108436507056
1987	1.4148869440699912
1988	3.31720205719283
1989	0.9618896689763261
1990	-1.2593788964532706
1991	-9.336607534227653
1992	0.7135469393390963
1993	4.953547120376371
1994	4.871478779798679
1995	2.842383584417391
1996	0.6515437253260501
1997	2.4770238581661204
1998	1.4556388714504322
1999	2.4998142778502483
2000	3.081059323344874
2001	5.1083168667202585
2002	2.455469781560609
2003	4.628005454442615
2004	2.04634682366364
2005	1.0148170004706145
2006	0.5993349326896436
2007	4.872752649872908
2008	-3.0286124131380916
2009	2.6475531929702782
2010	1.1006025590668145
2011	2.7850021289178812
2012	1.05688681952023
2013	4.707093466173575
2014	1.763024010327058
2015	2.167003826031504
2016	2.3332355141348415
2017	2.7359566258929675
2018	1.540084570781758
2019	2.6259769794097565
2020	-1.4857115371151082
2021	2.964630729390862
2022	0.7937620458620955