Year	annual % growth
1981	145.6249999999999
1982	-12.97709923664128
1983	13.157894736842152
1984	3.1007751937984978
1985	-7.017543859649194
1986	-3.7735849056603428
1987	54.06162464986025
1988	2.7272727272723074
1989	50.44247787610655
1990	-2.850858823529663
1991	-3.4402870253705373
1992	4.29279328274346
1993	1.9308868496402738
1994	20.664939074171755
1995	22.98343347147292
1996	11.536971525778455
1997	7.147564036360961
1998	0.0031263687177727206
1999	4.853555565277318
2000	2.6995082480069925
2001	12.465130995266833
2002	1.900490205622532
2003	6.0393052977451305
2004	4.459947899805812
2005	7.754223396856403
2006	11.484913149231375
2007	25.037293872325876
2008	8.507656184123903
2009	6.88027828183975
2010	20.183289392139585
2011	7.2984848811313014
2012	6.786632114613724
2013	-5.253788062563885
2014	9.165862343978645
2015	4.414142614163865
2016	2.4230968076236934
2017	6.457492446478369
2018	2.700358109698797
2019	-2.5038772812559102
2020	-24.316641311189272
2021	4.187843704045207
2022	6.727033346815546