Year	annual %
1967	-2.31884058067623
1968	0.296735906036536
1969	6.01577909270213
1970	4.48062015465097
1971	6.4920611363942
1972	7.7266076782349
1973	3.61531496573159
1974	12.8319316906201
1975	18.0121994976678
1976	11.6407308106915
1977	22.4570134066176
1978	0.442773093953005
1979	7.53925120772937
1980	12.3068572123796
1981	19.7165023624806
1982	11.1296733281827
1983	9.3554650798615
1984	-3.52662871020549
1985	-1.81441438232164
1986	4.12461526367686
1987	0.0540088504826715
1988	-0.150910979934777
1989	-0.839403116952551
1990	1.01534150530809
1991	0.387081797870731
1992	1.39378663675941
1993	-1.00688168855036
1994	39.1627673796796
1995	16.4335034524163
1996	4.68749999999997
1997	8.25082508250804
1998	0.975338381088715
1999	-0.0532136248824353
2000	1.86260595463066
2001	3.91959133653157
2002	3.05981857535874
2003	-0.930000884072201
2004	0.393078681031619
2005	6.7829289302831
2006	2.22897779414036
2007	0.945673271705144
2008	8.6948281436391
2009	3.71360592035802
2010	1.44594517430866
2011	3.56351472903954
2012	2.57718174055848
2013	1.82539475909171
2014	0.19087507624975
2015	2.58500390801595
2016	1.28544847051417
2017	-0.981889868943119
2018	0.927755426457183
2019	0.674652770077436
2020	1.69928463299408
2021	4.1862150652352
2022	7.96757361617945