Year	annual %
1971	6.376774499117403
1972	5.547814879030398
1973	11.270153989214691
1974	3.3861917240731714
1975	0.39833742501598124
1976	0.8200855093854358
1977	3.417799684733481
1978	2.2230938681467194
1979	8.667565105578532
1980	-3.866330331355968
1981	3.0828438913748073
1982	-3.286449431989709
1983	-1.1530641711416365
1984	5.4445366175329895
1985	-1.7556133556704054
1986	5.431926376369091
1987	-2.045291052723016
1988	1.2114819654522933
1989	4.647463861577748
1990	3.7761794262931403
1991	-0.3816652259664579
1992	5.00780429623093
1993	1.9850159702125154
1994	4.80649959753832
1995	4.514121686820033
1996	3.1572411087194183
1997	-1.1613932444930413
1998	1.4656718285560402
1999	4.377038011265782
2000	-1.688679901266056
2001	1.024188154481493
2002	2.065591465932613
2003	1.9862256657108759
2004	3.9910924007106274
2005	2.4398157006142185
2006	2.375748208695015
2007	0.4208586159140282
2008	2.1312167675476417
2009	-0.5920748572294201
2010	3.7303256385993393
2011	3.8620834377816067
2012	1.0060085363855222
2013	3.214677162707929
2014	3.624297300145301
2015	3.7791570812244117
2016	3.7806073359521832
2017	4.005501791070799
2018	2.7631801286771775
2019	1.214500228362155
2020	-10.253068536480995
2021	-2.867965543321688
2022	9.308397154122488
2023	5.7584516795377425