Year	annual %
1967	1.3120410187313638
1968	1.801431153331734
1969	1.016672332127058
1970	3.4676984254291483
1971	10.287634627205513
1972	2.226039961986423
1973	15.627403881304119
1974	45.18803330567364
1975	5.638632838200856
1976	10.58148232844318
1977	10.770966531645243
1978	6.464929990554765
1979	23.098744280232467
1980	25.862038763110974
1981	9.909970030161674
1982	6.2983525029532785
1983	4.130029262969771
1984	2.4915645324877573
1985	1.6890483933093634
1986	2.405343252936106
1987	8.842020422323088
1988	3.6705965517075327
1989	8.489705890223043
1990	11.927009417696276
1991	5.435256956034124
1992	5.691544864963575
1993	3.0349824633210147
1994	6.8617322590587975
1995	7.775960276634528
1996	6.8826124867655025
1997	3.108444814174071
1998	-3.692767005989083
1999	7.942787116443078
2000	11.203727434774407
2001	1.2608154802248634
2002	3.592594551945645
2003	4.496528495539785
2004	11.023723612976923
2005	13.0482805838232
2006	9.872978935284628
2007	7.679814460766799
2008	17.349104044919812
2009	-5.076985607625495
2010	10.605107605522896
2011	12.415097862191033
2012	4.670767953289797
2013	1.5318938192584
2014	1.262304413510293
2015	0.19700167873683938
2016	0.8566882242959366
2017	4.986213144017199
2018	7.924854711765917
2019	0.8829928281558921
2020	1.0414184276851017
2021	12.695715219056254
2022	15.61274137130777
2023	-2.258254271681068