Year	annual %
1971	6.366911598644286
1972	7.9468228672753085
1973	8.898405255992742
1974	14.152633504666667
1975	9.539803933384349
1976	8.140499411624063
1977	8.34326480627255
1978	7.309193238011879
1979	9.584882127182397
1980	12.668465525167917
1981	8.916964911262241
1982	8.11308950866379
1983	8.000000485904877
1984	4.815475836119717
1985	6.574924439590362
1986	5.09796961147002
1987	7.340010367563551
1988	7.32801561467528
1989	5.6928034371643434
1990	6.6794693688700875
1991	6.111373709714812
1992	7.34406692918725
1993	3.033732872686045
1994	2.6150313118472184
1995	1.7680839868646814
1996	2.9116655654236183
1997	3.1770227925516252
1998	3.413640750457006
1999	4.8283720267767904
2000	2.1789705814129263
2001	3.2453962100387628
2002	4.02298127208158
2003	2.547498200517026
2004	3.5751962041335332
2005	3.789038579301888
2006	3.872717159543896
2007	3.024456410386378
2008	5.468528592827269
2009	2.332361516034979
2010	0.958252850910597
2011	1.9512195121951237
2012	4.194069230618297
2013	0.8771929824561653
2014	3.0238942373196522
2015	3.2031592803861315
2016	2.6333266433458107
2017	2.5766856785920993
2018	3.99854350151341
2019	1.2413030324181875
2020	0.8908252443129925
2021	1.9831806200577375
2022	5.547556479809273
2023	6.318247469733819