Year	annual %
1961	4.213827101048253
1962	3.4079867046119148
1963	5.291328845967172
1964	7.7591053727702075
1965	-0.5413381909331321
1966	1.2427771211191754
1967	6.108865421550803
1968	4.602206261694633
1969	5.777223047842355
1970	5.907181551962594
1971	0.6194586681687326
1972	-1.7581341048063592
1973	3.8817857982654544
1974	2.479663438917214
1975	6.878111326609286
1976	2.606946472363589
1977	6.224862684511876
1978	6.143296151817722
1979	-2.5248944984530226
1980	6.522766760763687
1981	6.444767612936403
1982	3.8563815058944897
1983	6.669153679778589
1984	4.252148238503864
1985	5.476468441585851
1986	4.834419664186825
1987	4.26926519719315
1988	8.367930762486736
1989	5.382868474891822
1990	5.396915261114145
1991	2.107795412050592
1992	5.806666441747055
1993	4.286290178389862
1994	5.918223910996815
1995	6.823803684096873
1996	6.70815463580476
1997	3.6945765577109455
1998	5.4451638978128045
1999	7.512664933166064
2000	4.112449811914701
2001	4.359127669582691
2002	3.7210753505874976
2003	7.176071101115028
2004	7.54872298634541
2005	7.612733441677392
2006	7.618528801415863
2007	7.1391661263694175
2008	3.2981049942518723
2009	6.949900158846134
2010	7.365992008613958
2011	5.071221948494184
2012	5.381289736033509
2013	6.008601615364512
2014	6.847837891486506
2015	7.251561624209131
2016	7.7762355074678595
2017	6.502640993066706
2018	6.334693554339864
2019	3.9243228404805848
2020	-4.582693129447776
2021	8.763820550377972
2022	6.312211691706878
2023	6.3528549401854235