Year	annual %
1961	3.999978361744283
1962	3.498780606102983
1963	3.6816418289167956
1964	4.673053313512469
1965	3.319978086188982
1966	2.8191321112859242
1967	2.4910057814846454
1968	4.4473985420138575
1969	5.031764990735937
1970	4.1862195780582
1971	2.9519610610460063
1972	3.8167570143259155
1973	5.045446357069451
1974	1.4116746467794457
1975	-1.5209017330194143
1976	3.672557894251497
1977	2.170299084794962
1978	2.4166436115838934
1979	3.004850845210157
1980	0.788318006589833
1981	-0.1506505120652264
1982	0.3618889176105142
1983	1.362596818307594
1984	2.034819716385968
1985	2.1491155054848434
1986	2.107514780381223
1987	2.4397078632691205
1988	3.539354238891306
1989	2.9134444221332387
1990	1.7808253509931262
1991	-0.360542742785924
1992	-1.1137305513242808
1993	-1.1268786492089333
1994	0.9583938279685356
1995	1.9563668427475989
1996	1.5818597189230417
1997	2.8954436532248735
1998	2.4887044467306367
1999	2.7615557790885816
2000	4.242260074375764
2001	2.123586078045548
2002	1.3999965997789872
2003	1.5351556481970903
2004	2.888702578127962
2005	2.3637736976755264
2006	3.547316803356267
2007	3.3221192438546865
2008	0.60469080907977
2009	-4.839242082169903
2010	2.2581523193668858
2011	2.095396415568132
2012	-0.024989754987643664
2013	0.39239493028522077
2014	1.4554548475233844
2015	1.5905168862926615
2016	1.443662065963423
2017	2.506552006234017
2018	1.7525675622738817
2019	1.4703170209495084
2020	-5.684845520074234
2021	6.433474062737616
2022	3.5137274027491543
2023	0.6426067716000432