Year	annual %
1971	1.6089162341193344
1972	7.688891800381299
1973	5.300102850699972
1974	1.2172908909659554
1975	2.6352440838920472
1976	1.5798599048137305
1977	-0.8642762709225309
1978	2.036805936443514
1979	5.551597433167089
1980	2.1975341877101187
1981	1.0331612363659701
1982	4.5496499117771805
1983	2.495315953134437
1984	2.747730019996311
1985	3.645341351621383
1986	3.788064749588287
1987	4.398365148439694
1988	5.250073785148317
1989	4.294647554120189
1990	-0.734777182951035
1991	-3.552344608139336
1992	-4.721863092085783
1993	-3.1343095362748414
1994	2.1595444045526335
1995	4.526803115537518
1996	3.4282990530783337
1997	3.190983948902499
1998	4.546853996833207
1999	3.105000277707319
2000	1.8899061119551845
2001	2.449191145674348
2002	2.251347214418999
2003	3.8786637854023382
2004	3.45029281319151
2005	2.8222563870955923
2006	3.522313819006712
2007	3.0625899857576115
2008	1.4943614884866037
2009	-3.384598677805897
2010	2.526069117262921
2011	2.418566867491805
2012	-0.09174368609767214
2013	-0.9792067606726391
2014	0.19114783798654855
2015	1.2727850069821613
2016	2.1351516534072488
2017	0.5201422062352634
2018	1.5768238038174331
2019	0.6220988371102862
2020	-3.8998528804641808
2021	3.027575151668998
2022	1.5668356634948708
2023	-0.46948995074241395