Year	annual %
1961	5.992621031092298
1962	3.2595170916961678
1963	-3.575776615772398
1964	0.4510054561762189
1965	-1.7954916860919496
1966	1.4142258703499664
1967	5.930494258822193
1968	8.884797597493275
1969	-6.581804603718183
1970	15.449320646647678
1971	10.238030086373499
1972	8.856376836213983
1973	6.547504932633075
1974	9.368039275451494
1975	-7.484782392512642
1976	14.759407000277918
1977	8.896273329939163
1978	-0.48098777550228533
1979	7.953795214655742
1980	24.542553750398127
1981	-10.082348021024345
1982	0.16458749428925046
1983	-4.160772189118447
1984	0.40008408269322615
1985	0.5585023632300903
1986	9.471797999702275
1987	-6.776655329456133
1988	-8.35527813255979
1989	-3.157198471287529
1990	3.023770457404467
1991	3.0919526855305577
1992	-2.181827494970122
1993	0.581522861026599
1994	2.904299799409827
1995	9.812256944478918
1996	1.6686098208659672
1997	1.4988590338748367
1998	-2.167130823600502
1999	-1.0372612619801203
2000	2.6204170736086922
2001	-0.5508249180418971
2002	0.047395680321727696
2003	-1.7182254121155722
2004	2.7461172740059823
2005	3.2617659824973373
2006	4.15649884520019
2007	5.284084070873391
2008	5.418331975323355
2009	3.465502459912244
2010	5.23610702020261
2011	3.849631325415487
2012	2.571782626860198
2013	2.5764465743625635
2014	1.3769319005203897
2015	-4.0318203737707705
2016	-4.614170379036892
2017	1.173219973962432
2018	1.5565707546275007
2019	1.8123538881809935
2020	-5.1969023824816105
2021	2.41483667423617
2022	3.667883772177788
2023	2.904627896680026