Year	annual %
1971	8.03296921056753
1972	6.801481117567604
1973	8.419441253950268
1974	6.693054782200349
1975	3.4390826296663732
1976	4.829645077801416
1977	4.805353551886043
1978	4.037308708616976
1979	7.405864782268566
1980	6.449204114656993
1981	0.45027028417803194
1982	-2.092114769927207
1983	-2.407653055100184
1984	4.048395687212761
1985	3.573240946612401
1986	3.742628021289775
1987	3.917996780569638
1988	0.7114870927795494
1989	5.251494878864534
1990	-3.1293996461543685
1991	3.6168108720841445
1992	2.8466999915740985
1993	4.477806903089814
1994	4.679333569017885
1995	1.381817377938276
1996	4.057434325961225
1997	5.440631023570148
1998	2.668474325461375
1999	0.22895398171695547
2000	3.5604838073262925
2001	0.2529815302791718
2002	0.19089185120415664
2003	2.3761604484225103
2004	4.539051205125048
2005	3.8238117870662336
2006	6.079243734928227
2007	5.47008008440271
2008	3.7599677033490053
2009	-2.2856856261780223
2010	6.082784962721718
2011	4.406714365861603
2012	2.6957832386005975
2013	3.1600718417715115
2014	1.3051732889599208
2015	0.6579171128066008
2016	-0.5507409831529486
2017	1.7771333097820445
2018	1.070977358550948
2019	0.6818804707417172
2020	-6.112491106880199
2021	6.438430787917568
2022	4.076617501412684
2023	2.0949933540062204