Year	annual %
1971	5.38437111275978
1972	6.823368967748095
1973	12.548073998237058
1974	18.08781729339661
1975	9.758262632622817
1976	6.649595047473952
1977	8.57940941126563
1978	7.370161853278788
1979	10.625525795503961
1980	12.861005655878913
1981	8.872499193891038
1982	7.436987913116482
1983	5.66428865895918
1984	6.177908566006948
1985	4.450868453416319
1986	5.09796961147002
1987	6.962385149490217
1988	6.453705167773464
1989	5.68893659993266
1990	6.37017751588742
1991	5.993131638201959
1992	5.048878716002321
1993	3.0283126877492634
1994	3.561744069450185
1995	2.872997532200671
1996	3.198700339136451
1997	2.530620585584728
1998	2.970092815272068
1999	4.433423515799291
2000	2.7434059904078794
2001	3.6249055294183705
2002	3.266447482537899
2003	3.8886139103935875
2004	3.762837175502213
2005	3.9480996996314133
2006	4.126984126984141
2007	4.688177919465957
2008	5.60618091108023
2009	1.7651258761991073
2010	1.8223523042534566
2011	2.7869098819282954
2012	3.440880300341618
2013	2.1245418386185406
2014	1.375841495260353
2015	2.7732812185904834
2016	1.8560021624687053
2017	2.1735199144140296
2018	1.9499820216754884
2019	1.7843488858360246
2020	0.3026703306639007
2021	2.9081414658777973
2022	5.810828316435803
2023	4.735828043271326