Year	annual % growth
1977	21.724473645029633
1978	6.3695242684523805
1979	14.708587949771186
1980	5.611727329634263
1981	-1.8432234447344058
1982	7.578567437276675
1983	3.9131658862910257
1984	13.092107426068921
1985	4.949699321847007
1986	0.3744217425255272
1987	9.420756976955587
1988	9.90514215541316
1989	10.982702120775485
1990	3.998408019375205
1991	-3.001377676627868
1992	13.796296750362629
1993	-6.7999560455314025
1994	6.673239161149596
1995	4.803138133769892
1996	0.9350797268357525
1997	1.515030995650804
1998	18.38205856792699
1999	-3.9397104861128867
2000	2.813081611220909
2001	7.822708216201917
2002	4.590768940412573
2003	6.184046186762046
2004	3.8175178255544324
2005	3.977566506996837
2006	3.9296752063737728
2007	4.800120331609747
2008	8.703932694578526
2009	-1.0176807880534398
2010	0.7811499570490099
2011	4.499264805483264
2012	-7.290733171292558
2013	-8.266321322096658
2014	-3.710658332518449
2015	7.629925754173712
2016	4.799533101319909
2017	7.3889760035064285
2018	4.908995228853257
2019	3.666167009048408
2020	-8.563662978514515
2021	5.060374642371897