Year	annual %
1975	18.3117857539904
1976	11.54488065198355
1977	14.890066502322298
1978	11.45942944253855
1979	13.6746254544361
1980	13.60198282894915
1981	12.290327860595902
1982	12.099841451803549
1983	11.482653560129599
1984	11.11693128578855
1985	9.406907506872724
1986	6.859344227948855
1987	7.63279008878104
1988	8.35167956821219
1989	8.046158634873201
1990	7.5448610969945005
1991	8.93430656934288
1992	9.48654250617163
1993	9.524845370196946
1994	27.4479807126946
1995	11.425939964662
1996	7.19164660433344
1997	7.6471743331001
1998	6.43573287560781
1999	4.35643374510453
2000	4.5007885626210395
2001	5.14746800222618
2002	4.705791237460341
2003	5.67941771099112
2004	4.13663213144748
2005	6.42755278070092
2006	6.53784395299604
2007	6.78669789038244
2008	10.378524478797999
2009	5.00627361534043
2010	4.03314138974316
2011	5.36621092948079
2012	6.581831050751415
2013	4.88516387595471
2014	4.40225309243427
2015	3.55075967356746
2016	5.43051966119156
2017	5.1969818534016845
2018	4.09297819300634
2019	2.80270307928106
2020	3.84286439841883
2021	4.25936417542868
2022	9.52526628622843
2023	7.089978602932935