Year	annual %
1971	4.409173776113448
1972	7.666014116730295
1973	11.84466074098576
1974	25.284678608658908
1975	8.378411575717507
1976	4.540419391454705
1977	15.17857208033115
1978	-2.9411759999999987
1979	14.292312739748951
1980	21.999998038335463
1981	16.221978671907664
1982	20.904188000000048
1983	17.896765713528723
1984	15.865640100494758
1985	1.5389822530984958
1986	-0.3097060145891959
1987	4.517428776318397
1988	18.37398843585325
1989	-2.792094207872168
1990	9.006439503079335
1991	6.111373709714812
1992	8.56596841977273
1993	0.6547299674037674
1994	68.22795277984929
1995	-6.97546285989371
1996	4.590050944928478
1997	11.836407396568788
1998	3.413640750457006
1999	1.1262338288969431
2000	2.074898621014782
2001	3.366848647963934
2002	1.4813515871341423
2003	2.547498200517026
2004	7.072759103891201
2005	3.9951333907488333
2006	5.274110648457338
2007	7.488689494057766
2008	9.119824887428038
2009	1.6777240352717797
2010	-5.145943466257734
2011	-0.9098598964084772
2012	4.02647526320095
2013	2.346290098746053
2014	0.8531132220174271
2015	3.9646663960822366
2016	2.2447565190943664
2017	0.30490542251524744
2018	1.0975834063535785
2019	1.499486194790947
2020	1.2236092399405152
2021	-0.4012529173756434
2022	5.638377288097615
2023	8.830519285973537