Year	annual % growth
1971	-0.3219038616758354
1972	0.9207005550678105
1973	0.014138321848264468
1974	-10.109979303364227
1975	-5.516460573833953
1976	10.980964609115176
1977	-1.4963338191274573
1978	-8.588188026596725
1979	-21.990308629283774
1980	3.778105827672263
1981	4.853127220202921
1982	13.470470704293106
1983	5.985330236605307
1984	2.9144444477533256
1985	2.1062850327776346
1986	13.795970307632132
1987	5.2440597433455025
1988	-4.432702211880041
1989	-1.44055896112215
1990	-2.353958946114844
1991	14.731521108489403
1992	6.380403381677041
1993	-1.9086493928113981
1994	3.7690114760653017
1995	2.9296362641389777
1996	3.9001922555578687
1997	6.902400101302362
1998	-2.9456461307793944
1999	1.81958909136209
2000	4.573151880890208
2001	5.946742338551573
2002	-0.8433220593959447
2003	-1.1637399361557499
2004	-0.587131395243162
2005	-0.1421910883555313
2006	6.496703144939815
2007	5.300694469717101
2008	1.7647806497795244
2009	4.28843137133255
2010	1.6336543978970468
2011	0.2351319036771855
2012	2.814272023384774
2013	0.7632649239451865
2014	0.9275757455528435
2015	6.452896904777788
2016	2.6316900157951295
2017	-7.4908977890791135
2018	1.5811382478514417
2019	3.3979684747230436
2020	4.105423560542533
2021	0.08030582683335297