Year	annual % growth
1971	1.1563649375527945
1972	-0.29428107660109504
1973	-5.6047479794221715
1974	15.000162399746685
1975	-0.8156844927498526
1976	3.8363476723774
1977	-5.804730978533243
1978	5.601395493804361
1979	-6.440635983747114
1980	2.472188636518041
1981	8.073613475549308
1982	2.789003490127186
1983	0.29012828451719486
1984	-1.06254460602581
1985	7.201729524470778
1986	12.552711699878543
1987	-10.155997350681929
1988	17.93550699765207
1989	-1.3661362947133426
1990	-6.52858926925326
1991	20.6167971653106
1992	2.5591740634435496
1993	9.815052642154939
1994	0.5259405995023769
1995	6.363435152067652
1996	12.535114831687252
1997	-3.9002200722279525
1998	16.552376368659225
1999	1.4048239424994335
2000	-5.183451131943201
2001	8.129158155694142
2002	-0.8859833788718419
2003	9.263104494000942
2004	-5.172772700599097
2005	12.210967419452004
2006	1.6462883090411395
2007	-5.1421262061114135
2008	16.13293001948412
2009	-10.328191687555801
2010	14.5667757607862
2011	-2.258923583077717
2012	8.518101911792513
2013	6.207949539416575
2014	4.4033759529853
2015	-3.1675427007450736
2016	4.163760349906866
2017	-0.20291492617360518
2018	8.555423838111025
2019	-0.5449873576951347
2020	0.5114512772742614
2021	-7.2813138128518915
2022	5.657538121995472
2023	1.0169564200778893