Year	annual %
1970	39.565217391304344
1971	42.679127725856695
1972	44.32314410480349
1973	49.47049924357035
1974	47.26720647773279
1975	37.25085910652921
1976	31.196795192789185
1977	19.50381679389313
1978	21.622484829128076
1979	36.97478991596639
1980	48.99597392638037
1981	26.34376572224874
1982	14.072046253323922
1983	32.16048996937692
1984	22.644887150490785
1985	29.06152575048196
1986	19.47657645046417
1987	22.78931369152018
1988	24.31948101063288
1989	38.167322659602846
1990	44.55742852449077
1991	17.525936253346377
1992	19.622180685358256
1993	20.056501883396113
1994	20.202272616841242
1995	27.523719877343833
1996	27.080682337917573
1997	25.25487205618766
1998	62.762870408302604
1999	12.233315504843405
2000	16.62313053743379
2001	11.870838396711235
2002	4.757902316427295
2003	7.937719863839658
2004	9.143972512954848
2005	16.335163913309852
2006	14.943188750137992
2007	19.32512102065858
2008	14.922867328660683
2009	12.95179644135267
2010	15.402287770881854
2011	16.42978384590038
2012	14.954992482017632
2013	12.779697944543278
2014	11.879519361847219
2015	8.996990076380424
2016	10.02849882051502
2017	8.275528079246284
2018	6.290289123738285
2019	6.540404881297798
2020	12.53366087200204
2021	13.966435466597172
2022	8.354912554244038
2023	3.500327528565799