Year	annual % growth
1977	21.709803311085025
1978	5.975679939378551
1979	13.820170377074064
1980	4.4706498068746185
1981	-3.459593769528297
1982	6.313058713622397
1983	3.0597260440151928
1984	11.636170827309698
1985	3.6815880959657648
1986	-0.77015426759165
1987	8.237298173922497
1988	8.745881295898812
1989	9.41182316128193
1990	1.8061650256027804
1991	-5.480026158244357
1992	10.808713527055659
1993	-9.023639617685049
1994	4.489609328156604
1995	2.920160107049057
1996	-0.6609286361387774
1997	0.08620280704107586
1998	16.939416378743275
1999	-5.008617431221012
2000	1.725288032877728
2001	6.666777372165129
2002	3.3989896980568375
2003	4.901368596185733
2004	2.4380465391316903
2005	2.49084322076601
2006	2.2101203123903446
2007	2.5924402754535265
2008	6.008278022583966
2009	-3.2574873864645184
2010	-2.208063854091705
2011	1.8667874280191086
2012	-8.692656108166574
2013	-8.052829306566693
2014	-2.644988951909127
2015	8.244444966158795
2016	4.319937433089933
2017	6.394806259952475
2018	3.637027495667965
2019	2.269388514855322
2020	-10.055428297558649
2021	4.088730476950403