Year	annual %
1971	0.17883201589600617
1972	2.1290701802340095
1973	3.6783850822369715
1974	0.681607969928379
1975	4.125041555885531
1976	0.6885566485249228
1977	-3.28164189231407
1978	0.46176180632342323
1979	3.0694736822683097
1980	1.0861056941517262
1981	-1.3932793415648916
1982	-0.2552597525419458
1983	1.321700628633792
1984	5.081402498127517
1985	2.083203162595808
1986	4.503393907805915
1987	3.0259173293146944
1988	2.256854261466401
1989	1.8929632280208182
1990	-1.145583235687468
1991	-2.257950934964839
1992	-3.120693194270004
1993	-4.450226288155022
1994	5.13258262400565
1995	4.892279509111404
1996	0.9290110261241438
1997	2.708535361831224
1998	4.5399417860770654
1999	5.00470819347882
2000	4.18088713320644
2001	0.6506040967565241
2002	1.0454724637102117
2003	2.9350307017334245
2004	2.281273411658134
2005	2.609434861719535
2006	5.520624442700665
2007	3.682581267470411
2008	-0.8793995234784546
2009	-5.818081783088104
2010	5.179662895586517
2011	1.3269556273630911
2012	-1.1894113971892324
2013	0.2201820762454787
2014	1.5549266873842669
2015	2.3909702645128306
2016	0.6238429706231869
2017	1.9922374768537026
2018	0.4505113551567632
2019	2.2101244205088477
2020	-2.1356075262697516
2021	6.357902069184362
2022	1.6047581414110539