Year	annual %
1971	-3.694502369974998
1972	8.225089034662119
1973	12.875491993106621
1974	11.505666354317242
1975	-11.100637323890538
1976	7.176786843128454
1977	-2.3344411451961236
1978	4.997413738518716
1979	2.2156557194850564
1980	2.68842104523128
1981	2.8043195300596437
1982	12.319447054241309
1983	4.0643430647284475
1984	2.859977963035149
1985	4.441094053760139
1986	6.379310468395573
1987	4.099190651626088
1988	7.587348979843185
1989	9.183230412967959
1990	5.281628352951657
1991	7.949096302427165
1992	0.215691175495337
1993	4.738693450077889
1994	1.0702372709517647
1995	4.786286636344883
1996	2.997989740340799
1997	5.5082919800569385
1998	0.5207898397104458
1999	8.616094431129312
2000	3.7751691419263267
2001	1.8062646570850944
2002	-2.9656464509647122
2003	-1.9964264341480202
2004	16.741010749556267
2005	4.480908457947066
2006	-3.1627655711531446
2007	14.105702618458565
2008	-4.782358625257174
2009	-20.762791380235967
2010	13.815198899653211
2011	3.8375043770719373
2012	13.570431326211946
2013	-2.8608907633525433
2014	5.583252780213925
2015	-8.943604374265377
2016	6.061367934952628
2017	9.401221294888657
2018	1.520838041248652
2019	-2.5198950043342165
2020	3.649271468409637
2021	7.08315231461529
2022	-1.5892669874633327