Year	annual %
1967	21.323497315465538
1968	6.990717421026122
1969	23.694387463429397
1970	4.534703531522714
1971	20.384385321578115
1972	43.45740888764069
1973	17.01528499359988
1974	34.96988572016885
1975	66.74962098458194
1976	54.67915508743039
1977	31.876926944319166
1978	15.365747683854963
1979	9.619244320252703
1980	16.97263365090061
1981	41.652012097599425
1982	14.607181987106511
1983	-0.9250623614595092
1984	21.987714044021143
1985	9.188719335522503
1986	11.176075149928351
1987	8.600275282642077
1988	-8.36931660837547
1989	13.93128580862941
1990	-4.570414830690159
1991	2.3520751722783837
1992	7.954245003764779
1993	12.401576244260625
1994	9.057966723903132
1995	1.1005060047342932
1996	5.561850549096475
1997	9.864578882038133
1998	8.042118325824331
1999	11.353399248278198
2000	10.676155213954168
2001	38.454647883405606
2002	8.846918446621888
2003	5.520173383705364
2004	20.77895796454623
2005	42.857671548747376
2006	39.63416838197488
2007	39.53980341940891
2008	19.68947277300704
2009	16.889030568566806
2010	23.0768603816153
2011	17.093735866802653
2012	22.93400878877974
2013	19.593512742461407
2014	10.600926847831031
2015	3.4439003944294875
2016	-4.571538822147386
2017	21.26112634988052
2018	-6.517820573327223
2019	2.4814433483213003
2020	3.786060036563202
2021	1.4358035036926116
2022	17.41683611331005
2023	1.1440039480361852