Year	annual %
1971	1.170424691657871
1972	0.29426422549457243
1973	2.685870412637769
1974	1.4176237750603633
1975	-1.8578538542015224
1976	19.51738092528271
1977	2.0171736525499853
1978	9.170582092992177
1979	12.080380371678999
1980	9.271981782075443
1981	5.8191544610800605
1982	1.9092373068804847
1983	5.604447390364413
1984	-4.389110764920915
1985	3.9758915659348304
1986	5.416648240882722
1987	-0.0771218386051089
1988	4.546298389024713
1989	0.08501377629079343
1990	-2.4478876845081032
1991	-2.639166203171982
1992	5.949802999147181
1993	-8.314565745678479
1994	-50.143563685787065
1995	36.2578080199159
1996	11.446013253836071
1997	13.913041187679823
1998	8.796445719050496
1999	4.676734360325014
2000	8.12359935012472
2001	8.073671026096136
2002	13.392456887406027
2003	1.773879456446764
2004	7.45182648619847
2005	9.889508506336256
2006	9.230916028748837
2007	8.132294727208688
2008	10.881317778181355
2009	6.306205104146926
2010	7.1445827684831755
2011	7.951197368374466
2012	8.102955328161315
2013	4.3609663209385445
2014	5.50267989728097
2015	9.266717026701187
2016	5.072984725899815
2017	3.4452173549234004
2018	8.059369352316011
2019	9.727809031936602
2020	-2.3385542550802683
2021	11.174110574284924
2022	8.124248527836329
2023	8.378863342289051