Year	annual %
1961	1.8556593208204362
1962	5.764846040544896
1963	3.5804367075503762
1964	5.416645571163187
1965	9.037156488559475
1966	5.37384227069569
1967	5.977542858169599
1968	6.598183244598488
1969	0.6554388465702914
1970	3.626720940310463
1971	3.995003606932812
1972	5.762304882423706
1973	7.869852503251366
1974	-1.2276417312355505
1975	2.130681762816593
1976	10.500693056519324
1977	10.383889090211468
1978	5.966211807189282
1979	5.609926692324933
1980	0.5993540525236085
1981	-1.2220350240018263
1982	-2.07466089514611
1983	0.9056938838939885
1984	6.327295760862313
1985	5.626234849203399
1986	5.330774417535579
1987	6.63835598040356
1988	1.7460338067292014
1989	2.7278489293241677
1990	2.7917489495977037
1991	-3.3193084230375405
1992	6.073687877060195
1993	6.495718208188592
1994	0.2119034986425703
1995	6.189304557592351
1996	1.870776293881633
1997	4.598083062485387
1998	3.5902330335791106
1999	-0.7356510854476994
2000	7.291288158696176
2001	2.723193273213795
2002	3.7543378611993887
2003	4.547038051653971
2004	6.232302960691015
2005	6.0505992221597324
2006	6.567243551775874
2007	6.188327166780084
2008	4.231600110093424
2009	-2.4316278798801108
2010	3.731140344330086
2011	3.835690662075052
2012	4.1286877486693925
2013	2.7915597574680078
2014	3.058080562143701
2015	3.840079970939513
2016	3.892972197264129
2017	4.842913910503867
2018	3.844994769667352
2019	2.5596343459231434
2020	-8.965082232672955
2021	12.565284377127895
2022	4.143561940137673
2023	3.5826036263265593