Year	annual % growth
1973	-5.443618326217006
1974	6.702858958126029
1975	-2.748415301034143
1976	-1.1646217280471376
1977	4.582139592173547
1978	10.1101086019723
1979	-14.583277738784687
1980	28.68012300340314
1981	14.08386601993088
1982	1.7901227118473741
1983	2.961033623369474
1984	-1.5451068141090047
1985	0.9864968227568909
1986	-13.710627233615853
1987	-17.08260883346597
1988	-5.675485299352374
1989	1.0952217891309033
1990	-3.17733492826207
1991	-5.102516762076263
1992	-4.561493066817718
1993	-10.13510328958202
1994	-1.367570106938416
1995	-3.009652516198358
1996	-2.1741182183936445
1997	-0.10844494667364302
1998	5.027180700282273
1999	-2.0064064505129693
2000	17.82430991499055
2001	-1.4155754965186418
2002	0.7978729698341738
2003	7.6108323371048385
2004	4.955575719352794
2005	8.93468698660233
2006	6.775713736045901
2007	5.44285122660267
2008	5.414098385532753
2009	-10.26692249945134
2010	11.556635401366933
2011	2.6490933324380137
2012	6.878532413145805
2013	-1.1199528701588406
2014	-2.702627081446934
2015	-3.317772067041318
2016	2.6112239151687078
2017	-0.3499941833376994
2018	-2.0362799178675743
2019	-1.7004372824451792
2020	-7.75612645877888
2021	2.344025217507024