Year	annual %
1971	3.0304355234306968
1972	5.44706983167103
1973	5.990483834974981
1974	-0.9415884891671027
1975	-0.40413076887001864
1976	5.20156380523693
1977	4.291250319308546
1978	5.093377845531208
1979	2.481504708631462
1980	-1.05039660400206
1981	2.8531129592515896
1982	-0.7518455135610509
1983	3.571649884707881
1984	7.746152605942314
1985	3.8554736048235725
1986	2.518231918255836
1987	4.059112923857981
1988	5.106054982170647
1989	2.491496379088943
1990	1.2666547148413798
1991	-0.060380776834477956
1992	2.9384309750725777
1993	2.336074029374231
1994	4.283690837417993
1995	3.4441375941726733
1996	4.253832672097133
1997	5.139350999965259
1998	5.3678237316245685
1999	4.561720344483405
2000	4.71678251918199
2001	1.5402303963966801
2002	1.4763580494644941
2003	2.290088229100391
2004	3.876048379694396
2005	3.371759920669021
2006	3.5231236990258594
2007	0.8960565385354187
2008	-1.3729790925501533
2009	-1.8738918697571023
2010	3.702516921455313
2011	2.1793331126890507
2012	2.974844372820428
2013	1.6703973361107387
2014	3.2230910592659683
2015	2.832708399328368
2016	1.3178273920380974
2017	2.8094102018479674
2018	2.947752609177172
2019	2.6641239974574376
2020	-2.7594610637369357
2021	6.428496943963438
2022	2.5043624968735543