Year	annual %
1975	5.385278727820165
1976	18.958427239000034
1977	24.065545865783704
1978	26.3124509578202
1979	22.548330338842455
1980	20.99695546725837
1981	16.81518052461517
1982	12.078325931398236
1983	40.341568848369185
1984	36.299651977067896
1985	13.682396898696773
1986	16.25634428309601
1987	18.810492886756556
1988	13.658894453127493
1989	18.63655242863397
1990	10.399772910062923
1991	13.708046213445781
1992	12.035124745609407
1993	10.51420574957783
1994	19.33400298298481
1995	12.148767497857406
1996	10.734243546967432
1997	9.742787133400292
1998	11.414015885968393
1999	15.47134693109623
2000	19.34712842998339
2001	42.997616972519
2002	14.500426636070483
2003	14.068297549209374
2004	14.129320309017492
2005	15.813386157275511
2006	20.215619847809954
2007	13.548346287999397
2008	16.40721027832178
2009	20.2444007675396
2010	21.078857904849524
2011	16.915367561730918
2012	17.011322565133685
2013	14.849812834529125
2014	15.61021591337926
2015	14.89233600121262
2016	16.697757129892068
2017	13.739395725610137
2018	11.506168730101491
2019	11.905265680427252
2020	13.084885340839392
2021	9.175709443958132
2022	7.502298438842121
2023	7.013254293660151