Year	annual %
1971	3.774279429489951
1972	3.475225994759626
1973	5.649608420007553
1974	3.8129081864255028
1975	-1.9891383949328656
1976	2.9037923044013922
1977	2.195781876089626
1978	2.73600321269916
1979	2.4500165271963397
1980	0.7766126746047348
1981	0.152995038706095
1982	1.3587681587659262
1983	-0.2948365140991598
1984	-0.023086917636334192
1985	0.29642211651348305
1986	1.1739491081535647
1987	1.3416106143982347
1988	3.5386465177803075
1989	3.207838778119651
1990	1.7939864334955473
1991	0.23844472029901453
1992	0.6095335120011498
1993	-1.648504886016653
1994	1.466660492421056
1995	1.3743513547894537
1996	0.3552472777377744
1997	1.4409188296266962
1998	2.7288144540093384
1999	2.710598873964358
2000	3.6829805618571925
2001	2.2538770574498983
2002	1.2074237173988536
2003	1.3065034394401494
2004	2.724784910305303
2005	2.1767962639141842
2006	6.223688563337632
2007	15.11470227587806
2008	0.6163046213803796
2009	-12.809461461967047
2010	-0.3250589406604263
2011	4.604147668235342
2012	-1.1855983084681156
2013	7.3345179697215315
2014	5.153709866778016
2015	3.0092496644411426
2016	2.1003071020239616
2017	-2.9734539364436046
2018	5.823197159795242
2019	7.069003158920879
2020	-12.747219456341384
2021	22.651340456035584
2022	11.757881179006972