Year	annual % growth
1979	1.1350748363573757
1980	-14.64327301536575
1981	12.317453709170053
1982	-23.310597194851994
1983	25.894802558702665
1984	-14.09119361648682
1985	-1.0853609820565566
1986	8.108011935825658
1987	-4.3144467220591025
1988	-4.879596744174577
1989	-2.1217665720204195
1990	13.633726082370117
1991	-4.084822597146527
1992	-14.640124861868017
1993	-6.523600306385035
1994	5.815205666858134
1995	-2.4895853608879293
1996	9.618078908083973
1997	4.579586454460554
1998	-5.475763083531703
1999	12.09176353072985
2000	7.065567468727934
2001	-2.2712331129622214
2002	1.212681683356891
2003	-5.885254067156978
2004	-2.8542451806583813
2005	7.698856396631257
2006	-5.354233610342689
2007	1.6905764668616996
2008	6.42052539206783
2009	-19.655519341776312
2010	-6.973398196096127
2011	5.582325195369407
2012	-1.3547599811297317
2013	28.377468849360298
2014	-8.80433135531824
2015	-1.5549458426308433
2016	1.4374066755042776
2017	26.513035992417315
2018	8.303142351734266
2019	4.0778062219448685
2020	-13.464655638786269
2021	17.794657600930037
2022	21.031790858515606
2023	4.708064308582237