Year	annual %
1971	4.785099741383476
1972	1.9401577217411585
1973	2.8451242448988694
1974	2.339166245953919
1975	4.711586750542068
1976	5.4587887203097125
1977	5.8252562911337264
1978	-1.9653035788242903
1979	3.845923889926979
1980	1.7427323479932255
1981	-0.04232762796912937
1982	0.7507243613225683
1983	1.6432088723511384
1984	2.9008372705450256
1985	8.898611026264348
1986	4.675234085677161
1987	-1.0812759108509056
1988	-2.6367020671415133
1989	-1.0205435282093447
1990	0.3466067568473221
1991	1.599080733639525
1992	1.7750746931796186
1993	1.6638582166569051
1994	2.807721628963705
1995	3.075717248303107
1996	5.785631868620115
1997	2.5631325807878653
1998	2.218295488056569
1999	3.0262786901273273
2000	3.496741284944818
2001	1.5476801051345461
2002	2.5812231796331133
2003	2.5891370741807407
2004	4.828069458783489
2005	3.694104736214456
2006	4.11840827244454
2007	4.222918265192959
2008	0.4181728471866819
2009	-1.2232911070559993
2010	2.524596405638917
2011	1.0453398013295327
2012	2.1521767752616654
2013	1.575588038257365
2014	0.9266984671244529
2015	1.6929152056315502
2016	0.23638403127978336
2017	1.4163022410353676
2018	0.7659383848837678
2019	0.3428588917368387
2020	-6.771470222603824
2021	4.536994502423369
2022	5.26932159467961
2023	-1.8402078900247005