Year	annual % growth
1971	-1.9871186454318774
1972	2.0776399677004775
1973	1.0853951286108554
1974	9.127525779737525
1975	-0.4920614868312896
1976	-8.652602601181655
1977	3.247585323873608
1978	-6.5531243658278555
1979	7.153105408502313
1996	2.5009064701115165
1997	1.8811682021262897
1998	2.1378147438551878
1999	3.5464253499276452
2000	0.9999999993278692
2001	4.020849845537981
2002	-1.2914890857986308
2003	1.2954728918072078
2004	3.0695035371926025
2005	2.4984460785156983
2006	2.1450983895911833
2007	2.2446693155276876
2008	2.289186716278934
2009	5.472706897443658
2010	-2.3077634593773126
2011	1.87731998763023
2012	2.0778722683867556
2013	-5.038897373161149
2014	1.5858776249827287
2015	-1.5289974683422258
2016	1.345465423895817
2017	1.2929057121464211
2018	0.35434929713828467
2019	5.932810333070108
2020	-1.3698395163257686
2021	-1.5650292183429144
2022	0.9000100005106759
2023	2.2999804620402244