Year	annual % growth
1981	4.4702572444393525
1982	5.792606087289158
1983	-16.336543415839486
1984	11.680663364872032
1985	-20.617571122610556
1986	22.04569096849238
1987	-14.635139872046736
1988	7.645743636398066
1989	-4.9748328669139426
1990	-3.6990129778062197
1991	7.6970865723103685
1992	-14.757352899260411
1993	-30.219884634292583
1994	9.47074259820495
1995	13.919116009804895
1996	-3.7109978466583726
1997	47.82104339037758
1998	-19.19377932389122
1999	-4.57015713532904
2000	-10.975799841394235
2001	0.6252997306164616
2002	5.211435079030963
2003	-1.611294453395658
2004	3.6851055223400095
2005	-8.460611824081155
2006	-0.851033285084597
2007	-27.069174227872196
2008	31.79464931635937
2009	-8.873286645339775
2010	-10.862946696534934
2011	5.7087138367637635
2012	-11.040827904024312
2013	3.630115301017895
2014	7.033504678141583
2015	-7.850084871669267
2016	7.4678537190300744
2017	8.457815142212084
2018	-1.9847278203105532
2019	4.099056564055132
2020	-3.3018049238305593
2021	28.84426575860013
2022	-4.447905763095548
2023	-3.947218737612161