Year	annual % growth
1966	10.589580014345728
1967	12.223508926123714
1968	11.907743325799117
1969	15.659874323240786
1970	10.358559741566495
1971	7.66920818675294
1972	17.078645110712486
1973	9.99644238400424
1974	-2.14653440788274
1975	-7.2107905329819175
1976	9.023351972320313
1977	-4.897433685230752
1978	-18.86600304807172
1979	-11.139350677118301
1980	-40.30785483467773
1981	0.45663139595750124
1982	29.609818423514497
1983	12.894420640371052
1984	-7.271935713987915
1985	-2.0378607342480137
1986	-6.264838644730915
1987	19.19928773041157
1988	10.390273468726605
1989	8.079162011745495
1990	13.283753894829474
1991	10.020654015550264
1992	3.7216225573409645
1993	5.587444826087662
1994	7.045754604618267
1995	-0.37563247004112554
1996	3.0534286501657277
1997	1.9382296117609172
1998	0.19630136096667172
1999	5.448970851899659
2000	5.206262296701098
2001	2.494235017835706
2002	3.9052918344661123
2003	6.088245831992609
2004	6.835921797619733
2005	6.949687735123234
2006	7.343471445180214
2007	4.204878073219675
2008	4.7514563348615155
2009	-7.67866029395438
2010	14.92302527674643
2011	-11.375299346175055
2012	-0.8229159174898797
2013	-3.814033535323219
2014	-1.9798423847566085
2015	5.238865780717788
2016	4.906973221475042
2017	16.13913263338516
2018	8.81809942221578
2019	-4.578766636054581
2020	-20.521331670409978
2021	3.002640668264462
2022	16.838450462928094
2023	16.671595033348623