Year	annual % growth
1972	-1.3990299645279975
1973	3.058792077188002
1974	8.648046745838968
1975	-4.244018584046117
1976	-0.547010747317529
1977	7.944900006318491
1978	9.012149889313534
1979	17.908086773706742
1980	5.01960951475084
1981	19.86254294877203
1982	0.03685972681833505
1983	7.480120463495794
1984	7.049826328935495
1985	4.1923005962235464
1986	0.5283135431658081
1987	1.4388031732616753
1988	-0.974174616889556
1989	1.7543043751908556
1990	-5.865193864662714
1991	4.546992514924739
1992	2.664693713115085
1993	6.157936102449284
1994	3.8638486961407636
1995	-0.03736697342884554
1996	4.436133741694121
1997	5.805154883037744
1998	6.331594803098113
1999	3.5443316609614612
2000	3.349369727337816
2001	1.867820603741535
2002	3.336477571364881
2003	9.83634181591431
2004	0.6616643972462413
2005	2.6104404012550475
2006	5.053822318440737
2007	4.805499811537032
2008	0.7689353787547759
2009	10.33779513659627
2016	5.372861282230247
2017	5.652894687992969
2018	1.079797724588147
2019	-1.351504359205208
2020	-3.582009837695466
2021	0.5602394864427538