Year	annual %
1961	3.167230638499632
1962	0.15994817787643
1963	3.5699250638710396
1964	1.5987104542863904
1965	7.931704956588575
1966	6.296188834066399
1967	7.939641765796864
1968	2.415383585082381
1969	3.3433643381499962
1970	3.708353022223207
1971	4.458444375608977
1972	6.774575140906961
1973	13.017697034709315
1974	20.82566953298233
1975	5.35029466941981
1976	5.981859341075449
1977	0.010759404529721905
1978	8.982345695884234
1979	12.564505989954938
1980	11.508320807462042
1981	9.894690311899538
1982	9.34740967360203
1983	8.487755878370834
1984	9.653554452375317
1985	6.508614700434308
1986	6.789400453561754
1987	9.327893305982442
1988	9.617560649784096
1989	8.436808869097973
1990	6.532735292255111
1991	12.5446382094389
1992	9.40370611580596
1993	9.861782854754097
1994	9.770584820075044
1995	8.284382710938829
1996	8.11263265655306
1997	7.279092977635202
1998	7.5260368956337516
1999	4.162701158847625
2000	4.472433718719529
2001	5.675061486962321
2002	3.9281182344124375
2003	3.7460521606674604
2004	6.4883781060477475
2005	6.299296405246444
2006	7.279895285974661
2007	8.967306766142158
2008	8.527467860157358
2009	6.902360058281758
2010	8.835346941637276
2011	10.893680012252034
2012	8.049480577096162
2013	6.568763617515813
2014	4.925992557070025
2015	3.8626264146197826
2016	3.694689455634233
2017	4.243954260817738
2018	3.8630134523435444
2019	3.7643325816970616
2020	4.3279606523907574
2021	7.195366129823164
2022	7.494352518218328
2023	5.416145184861335