Year	annual %
1970	4.0592469302555
1971	3.8756212395568346
1972	3.707738843527495
1973	7.071867534706575
1974	12.13662664495255
1975	9.593436412783905
1976	10.7867791969762
1977	12.29314215705595
1978	10.3970665660787
1979	9.90436051231129
1980	11.584567341648452
1981	11.84612549979475
1982	10.39330807646335
1983	6.167613864793865
1984	9.22951819475499
1985	7.7286389008592
1986	15.25962130805795
1987	7.44126091287247
1988	6.905098074937665
1989	10.35178923978328
1990	12.321799984781059
1991	14.51233162226315
1992	12.32329924182415
1993	12.6564663913828
1994	11.741349219577781
1995	11.86109415403323
1996	6.84416086199789
1997	3.65202620723071
1998	3.8725754642749
1999	2.6901248581158
2000	2.68380535348546
2001	2.1265452690464652
2002	2.729135699253945
2003	4.335993087851939
2004	3.7970401760690597
2005	3.80046802667731
2006	5.047032961406125
2007	4.325807947326306
2008	12.310736758289
2009	2.92089711805361
2010	3.95007875923885
2011	4.97148571692384
2012	6.08909641595043
2013	4.0376293364812295
2014	2.66621023302641
2015	1.5579071134626
2016	2.73841208738755
2017	4.32135218303191
2018	4.46231108475481
2019	1.95176821052892
2020	1.7774078380617
2021	5.21404940513043
2022	6.65704202759067
2023	7.706657642162315