Year	annual %
1970	5.497936619497423
1971	3.428324774543313
1972	3.7407948179188253
1973	6.1408033774456925
1974	1.5825019894178354
1975	-0.936733753002855
1976	5.434828190701339
1977	1.9386211535855011
1978	2.113491605885585
1979	1.7075100430046461
1980	3.459624702584179
1981	-0.3868751986922234
1982	-0.8530585706895408
1983	2.329549419688149
1984	4.0934321266129245
1985	0.5153064134865133
1986	2.6253136909507333
1987	1.6101953722741342
1988	2.975330935901937
1989	4.643866712644694
1990	2.595353700752142
1991	2.8990954616776605
1992	0.8441010248214695
1993	1.6857704158018976
1994	3.7361287800448366
1995	4.1539916751371635
1996	4.031567247161007
1997	4.676572589034066
1998	3.6776327280918935
1999	5.825540575957348
2000	4.16221547266251
2001	0.9949327990200914
2002	0.0027290013084240172
2003	1.4779416052094803
2004	1.529559483006551
2005	2.0877654589101837
2006	4.633003679588725
2007	3.110645620534072
2008	-1.5918160656195397
2009	-2.5724548471680606
2010	3.510637348447048
2011	1.4236029794350031
2012	-1.6862380708428617
2013	0.3282930073997363
2014	0.7765607025103094
2015	2.6867681091858913
2016	0.814056675324835
2017	4.233483160201914
2018	2.99958103878663
2019	0.4483169252714134
2020	-5.1084018398876765
2021	11.357020453172566
2022	0.6507372724489073