Year	annual % growth
1981	49.43798694532373
1982	-27.17629801387085
1983	-4.645979164884054
1984	39.35350943160009
1985	-7.348777029920015
1986	15.317150546132623
1987	16.83810012334071
1988	8.161669543769605
1989	10.055843081750567
1990	-0.41539515202165944
1991	-2.356093363541973
1992	29.59690261661737
1993	3.0323437409051905
1994	6.80116928758892
1995	-5.122780967471257
1996	5.340450322607907
1997	13.16353303197451
1998	5.109626174860011
1999	11.474115592811842
2000	10.21722541034768
2001	4.916492679430775
2002	9.574931070000588
2003	13.198757916301716
2004	5.725630086832069
2005	10.00604184458895
2006	12.599329797289329
2007	-7.692426272367001
2008	3.970314428560883
2009	3.3625476271357257
2010	0.2046667425979649
2011	3.082503622314306
2012	11.132340771531005
2013	13.080336261807915
2014	-2.6198662255978604
2015	-6.464343155987663
2016	-7.926146586294209
2017	-6.943793892902022
2018	10.899124510557641
2019	6.061761891052967
2020	-25.016169878674702
2021	36.37169548963385
2022	11.473845140650326
2023	8.080960346824952