Year	annual % growth
1961	0.0919608424799776
1962	-2.322594667219903
1963	17.853386196294196
1964	19.662902063094293
1965	17.449582604205503
1966	-1.1369811988984395
1967	2.580525616874098
1968	4.5260502278980965
1969	12.533986175115203
1970	14.271674199806512
1971	10.810338648987639
1972	5.842189729679475
1973	5.222190394347365
1974	6.529629979164994
1975	9.7575020358653
1976	-1.2355490432255891
1977	-5.961765741299544
1978	-2.772940433255229
1979	4.168371258349637
1980	17.0775496194795
1981	8.954424499368557
1982	-2.149447115011455
1983	-3.541154385129957
1984	-1.4895139206780357
1985	-7.026208807873488
1986	-18.574994313624558
1987	-5.116754328896917
1988	12.583576735645721
1989	6.504490245329109
1990	-2.3406152474364745
1991	-7.388293983572012
1992	-5.259773892232673
1993	-0.5549902725935851
1994	8.24715589962392
1995	10.691265856756942
1996	9.008219478756146
1997	5.741871094463363
1998	4.7652849429133255
1999	-7.5951065109497335
2000	3.865708866519384
2001	2.8488905354181213
2002	3.4926099298397446
2003	10.237013085865271
2004	12.876980924308782
2005	10.98373651044733
2006	12.144652440384249
2007	13.758711701294729
2008	12.822516837309323
2009	-6.676750110585402
2010	-3.9122520078774556
2011	6.843509682706198
2012	1.757438459627167
2013	5.3578688343445435
2014	-1.3172894866859082
2015	1.3495815245168359
2016	-1.9319656390518105
2017	-2.0331363924500607
2018	-1.214507212150565
2019	-1.743542024401421
2020	-14.627516140681806
2021	0.6395220400952155
2022	4.794660832508214
2023	4.247202912711586