Year	annual % growth
1971	42.35081464429314
1972	0.8756571657649488
1973	22.433846903551284
1974	7.924844648520789
1975	-8.823454428506395
1976	-2.7179443617676924
1977	11.490852274100206
1978	-5.541041119222541
1979	-1.7701595262925878
1980	13.945536490833462
1981	1.1844918292232052
1982	0.06291359742920122
1983	-12.727918707777874
1984	9.368985164322424
1985	1.0288128312889881
1986	-1.551892532834927
1987	18.762070369854584
1988	-0.2043343486619591
1989	-7.864214879797174
1990	3.0098198900981856
1991	2.5888619403602036
1992	-10.353984584875619
1993	-9.802931769304294
1994	-0.21036985855363355
1995	-1.712455815552829
1996	22.31505158621026
1997	11.223009061199221
1998	30.56818631172166
1999	-3.334145853497944
2000	11.923925842291894
2001	-3.862931787421232
2002	-12.38362221035571
2003	9.252315414678918
2004	26.34464923796827
2005	30.242973379408795
2006	23.815953384289926
2007	-11.010917770238223
2008	-18.45781673455889
2009	-47.4573880669277
2010	-8.411154771845602
2011	10.92965081104576
2012	5.14132243824244
2013	2.2327940325972406
2014	16.14487234355893
2015	21.484016557056336
2016	17.988893580877672
2017	10.565599142456534
2018	2.3043345054791757
2019	-4.100216652430731
2020	-7.387312428870402
2021	14.077790703162947
2022	15.141269956197007
2023	-0.5565455650809525