Year	annual %
1966	5.597387122453597
1967	1.932593210558224
1968	-1.9758501102668902
1969	-1.0181793524660208
1970	3.4039899933939495
1971	0.6099751540122895
1972	1.8813423116335315
1973	4.527019569762288
1974	-0.47412644403632953
1975	-1.6926664686740054
1976	8.682251737229166
1977	10.215215616435984
1978	-0.8801131291193798
1979	-11.846393664056336
1980	-12.663315330747722
1981	-11.64091112797665
1982	-10.195708111654923
1983	-0.671859879198891
1984	0.8595518346800333
1985	0.10320088505989133
1986	-2.569776354625944
1987	-1.4460361862299607
1988	-0.6626511070126355
1989	-0.0353479582420988
1990	24.708242992388122
1991	-1.1254930441672002
1992	5.710450722548785
1993	4.355810688820043
1994	4.997877108404651
1995	5.213183336102858
1996	0.7371446520900093
1997	0.5423304007241541
1998	-1.4576416782515906
1999	1.8888887788282887
2000	1.660214994820393
2001	0.8308682270675263
2002	0.3643668600200982
2003	0.5247289743313956
2004	1.4333421144903582
2005	4.007092445827837
2006	4.480659885552797
2007	6.9280983469252675
2008	-0.7823834676725312
2009	-6.8982500510489615
2010	0.5436257990823634
2011	1.1852858827096355
2012	2.812229209461165
2013	3.0734316392559293
2014	-0.5249239171328242
2015	2.617948843418887
2016	1.6525873302476697
2017	1.4018228446427372
2018	1.1839915439078652
2019	1.627877822252799
2020	-8.310311064613543
2021	9.178965746937664
2022	2.1601095072332157
2023	9.409540106423961