Year	annual % growth
1981	1.0057397731656295
1982	-18.80972334850388
1983	-10.216675999645815
1984	16.45718355687802
1985	-15.651810013339642
1986	1.8967316885473764
1987	28.289101043116972
1988	20.145194646009458
1989	13.829729054050048
1990	-3.613129044496688
1991	22.291083945043184
1992	-10.38714160389955
1993	2.1414323073049246
1994	6.319214105943402
1995	-5.21689302660468
1996	5.518453975686782
1997	12.1158247432478
1998	10.444658085702699
1999	24.602612092695495
2000	20.090881265850797
2001	-0.7988648674371888
2002	2.618489593088441
2003	2.1130703649720175
2004	-7.456990421451451
2005	6.655726246377583
2006	0.4623390990117002
2007	-1.1374187420829571
2008	9.39559739013896
2009	-15.711266243498812
2010	3.167721974622964
2011	12.955078954599458
2012	7.19188147735386
2013	8.941169328195528
2014	3.3773760140674085
2015	9.350744114011462
2016	-0.6896257145076845
2017	-2.1434096027592773
2018	0.06621281854195615
2019	5.2976642270423895
2020	-22.91199365824194
2021	32.14610996054461
2022	10.23904755840283
2023	9.69605205719823