Year	annual %
1961	-7.758582597013472
1962	-1.110945874882205
1963	16.837626478648644
1964	1.1267260163167094
1965	2.652404599714359
1966	-1.3775409204610725
1967	-2.323085682851172
1968	-3.2806945262115903
1969	4.905967051343524
1970	-0.5094372970648919
1971	-0.468653964725263
1972	0.3438431483907607
1973	17.87411971893404
1974	12.7092356059606
1975	-3.0775783007736095
1976	12.726161334748525
1977	6.865120959670421
1978	9.840380882297126
1979	12.059476683065995
1980	6.875078733969886
1981	1.0600191290354672
1982	2.5590557316689626
1983	5.910387214468969
1984	4.792784019620981
1985	-1.6059221989808918
1986	-8.717319862661881
1987	7.666714750753798
1988	3.6200262502995173
1989	4.461703543351689
1990	3.8078149763084923
1991	3.584698694941892
1992	2.4142424724986
1993	3.986971310218948
1994	3.937334512075836
1995	3.633419553101234
1996	3.6799033847535867
1997	3.4823495826593387
1998	8.498719998348577
1999	0.04545282056955102
2000	8.85521685144839
2001	-1.5818739118174392
2002	3.1288831986340853
2003	3.298932876878254
2004	6.0092826148210605
2005	8.862586470677101
2006	3.9809316735124156
2007	4.8813233572794275
2008	10.388900399283571
2009	-5.9922015556219606
2010	7.266845933894388
2011	5.41240809007968
2012	0.9999323034708851
2013	0.1744744813214396
2014	2.467466783663781
2015	1.2180557335533848
2016	1.65825996642414
2017	3.778960943064533
2018	0.6246746745866432
2019	0.07182690931213642
2020	-0.818007729183023
2021	5.707515693654258
2022	6.445753155175325
2023	-1.8649294299454482