Year	annual %
1966	5.150142423182686
1967	1.3004607433181974
1968	-1.5134699982549193
1969	4.337669025836874
1970	5.833449779388772
1971	3.992297443516321
1972	3.252375626432695
1973	2.684569894219095
1974	1.6173611348718282
1975	7.913845047483264
1976	12.396374723837525
1977	8.585636204252395
1978	6.974923230513696
1979	3.2408302220775056
1980	8.69734176243388
1981	6.770516399774323
1982	11.491268169191486
1983	5.401998760836804
1984	9.952161573498387
1985	2.8837030683839515
1986	3.6262325979848953
1987	13.786833206730151
1988	6.305768335653525
1989	4.20611794511116
1990	4.301096419811117
1991	4.469249784322173
1992	4.341550808661282
1993	2.8457329812000154
1994	3.906332383666893
1995	4.783627164580068
1996	5.114343189078554
1997	5.505708605202898
1998	5.8811886694177815
1999	5.596075173033938
2000	6.272822250642207
2001	4.212037306363143
2002	1.3671644075834166
2003	2.9339161115134544
2004	3.9553253870905394
2005	4.449293285205627
2006	7.699071626269927
2007	7.526215173944692
2008	7.075373609242803
2009	3.8800817389011257
2010	2.9836592514703
2011	1.088160622409859
2012	2.4824263198376855
2013	1.9028331847697615
2014	3.1421281664774483
2015	5.086997814700538
2016	4.763815141177631
2017	3.6829341400802917
2018	4.740033364313106
2019	4.39777059191924
2020	4.103708780284137
2021	3.3324730718018287
2022	6.159658603956046
2023	2.613255191273595