Year	annual % growth
1972	2.695096397146756
1973	3.0168402000575725
1974	-6.560343667261407
1975	-1.5493117317253677
1976	15.704652702891252
1977	11.441906130028073
1978	-0.07918018262404303
1979	-2.5409947295872257
1980	-2.885475101506003
1981	-11.070589200631247
1982	-12.764517327349552
1983	2.287071849311232
1984	9.723763901837756
1985	3.876933423191886
1986	4.311575452576477
1987	3.3161200176308228
1988	1.1822186658081932
1989	-3.3354220839340343
1990	-4.399547488549217
1991	-2.8151841672062687
1992	1.173193211239095
1993	9.915392291964736
1994	0.5781480686317622
1995	2.5236949596699105
1996	-2.9044240733717004
1997	2.176011009482906
1998	3.2992282009177245
1999	-1.024645583107457
2000	3.611221946708781
2001	-1.020825699508606
2002	-0.5070946972522279
2003	0.01755580296534731
2004	1.0228100488851197
2005	2.5722501532418534
2006	2.2597210111170227
2007	4.860810280135027
2008	-0.8495742090222507
2009	-0.9562695577367606
2010	-2.0572921523669265
2011	5.004246817378501
2012	-0.8639392290077836
2013	-2.1860457113404976
2014	2.1771487456386183
2015	7.91512287224856
2016	1.7006072093576705
2017	4.7965466944873185
2018	-2.4143456749468584
2019	1.8721812448181367
2020	-4.483416517269262
2021	5.3798294591066735