Year	annual %
1971	0.8705352021788286
1972	2.4313083067350334
1973	3.857243476013636
1974	0.9741748303478062
1975	4.539527861241183
1976	1.0554136322773502
1977	-2.9375284853999517
1978	0.7546779804313246
1979	3.2946408290454485
1980	1.2915156629572948
1981	-1.2749588373268352
1982	-0.19819770189695873
1983	1.3675830003222273
1984	5.176932961233604
1985	2.2519539457723567
1986	4.746719125077277
1987	3.370267260154108
1988	2.7279067422226717
1989	2.575048524202984
1990	-0.3788733701232161
1991	-1.5894230859915552
1992	-2.550797394145704
1993	-3.893621191101005
1994	5.8824270671300525
1995	5.444099879665828
1996	1.0897644839215133
1997	2.767365374356075
1998	4.597990236794814
1999	5.086567261931066
2000	4.348310482007875
2001	0.9211843565698103
2002	1.3748485637042052
2003	3.3187581552942618
2004	2.684336730755959
2005	3.020635606104733
2006	6.115833381146473
2007	4.454299869037669
2008	-0.10420144271004972
2009	-5.012314555472358
2010	6.080178530908981
2011	2.095022647861896
2012	-0.4557365708347021
2013	1.0730045253987583
2014	2.567590321466824
2015	3.479453341848469
2016	1.8961112508882252
2017	3.375827465599329
2018	1.6241936721653474
2019	3.2515207222522378
2020	-1.425775831371368
2021	6.998600688460257
2022	2.2986211969713537