Year	annual % growth
1981	2.372366635999313
1982	-19.084573012720796
1983	-15.122970372631968
1984	18.831709128411703
1985	-14.583024693878272
1986	10.135706316072685
1987	46.64596304099021
1988	32.67018562245141
1989	17.294938094879967
1990	3.9238598278624295
1991	23.332038358205835
1992	5.079327911338211
1993	14.09082402197157
1994	-23.54728722366393
1995	9.549135941721758
1996	-3.7668549519137287
1997	-0.5692306644575211
1998	-1.7178546638019867
1999	36.90419153533611
2000	30.90511656555924
2001	-6.247375616697653
2002	-5.361251755409995
2003	-14.003567981444405
2004	-5.382418145016416
2005	7.920518397007115
2006	1.8247624931796622
2007	9.292840949168408
2008	22.630128665723916
2009	-25.615165398211317
2010	-18.431171393065938
2011	1.036803486771447
2012	-3.5018399957475594
2013	18.148781348662
2014	18.680505633010185
2015	4.87442351377527
2016	13.67665111444218
2017	-14.098347660825567
2018	5.906879767205254
2019	5.649618353568229
2020	-10.501243071275326
2021	25.97036063191929
2022	12.831661690979843
2023	9.51105336875753