Year	annual % growth
1961	-1.033923749614658
1962	-2.1221037418179804
1963	16.11074186382639
1964	2.671647316802847
1965	7.610519009314061
1966	8.970361217253327
1967	3.793838435389233
1968	8.896556999811551
1969	6.190386313706455
1970	-0.9828809843201753
1971	14.016772393949651
1972	4.022813079272751
1973	7.287158140526401
1974	-16.960522962012462
1975	3.095980497131336
1976	15.01501394154792
1977	5.744119127810492
1978	-3.456791102737327
1979	4.859343800146505
1980	3.6585373532114716
1981	5.411759052592657
1982	-0.8928541702574222
1983	-2.7027033138029566
1984	0.25694460375001427
1985	-1.493848200036993
1986	5.386273913955478
1987	3.37618561352771
1988	10.957400177271182
1989	-2.2666887317421214
1990	5.015474521989333
1991	15.153403390446059
1992	-0.23296564046209767
1993	-5.217807899857547
1994	-5.883271536524276
1995	2.569729655647052
1996	-7.566362898416003
1997	58.271740680792675
1998	-3.058514105783331
1999	-7.4965941094450415
2000	4.184899382131007
2001	6.93488834950449
2002	-2.4872616895920743
2003	5.703620231512957
2004	14.22425828492591
2005	10.65053916769618
2006	9.623326292842464
2007	13.750699232048731
2008	4.777975894851409
2009	1.5391231886002572
2010	2.144001482386514
2011	5.920213646944305
2012	6.257481836343601
2013	3.342717649250602
2014	0.6405752878655164