Year	annual % growth
1981	3.9330770895809906
1982	8.156159003202674
1983	-0.22342819190369312
1984	-1.241414128423358
1985	1.1854391188705051
1986	9.773870111018738
1987	-0.6773650349862237
1988	5.944590749114823
1989	0.29859062419679105
1990	0.25320882252120214
1991	7.291029270955704
1992	0.38015142661052437
1993	2.863541211394761
1994	-7.206504736918731
1995	8.131004224774102
1996	10.72931987509908
1997	4.918060284772594
1998	8.886984930416148
1999	3.2264869454170224
2000	3.805636045834987
2001	6.5349756907002785
2002	4.168344873698658
2003	7.536740010823365
2004	4.6746116006676175
2005	7.259995080075484
2006	5.653895639972333
2007	3.82968329355063
2008	4.9456614734168625
2009	2.2861895436999617
2010	8.169371877122941
2011	6.072819057499416
2012	12.380515078472754
2013	3.341429689472392
2014	3.2216932665231326
2015	5.564764914691551
2016	8.457421805796073
2017	6.424658889515371
2018	7.768377797330345
2019	7.142480665312732
2020	0.7790892526168705
2021	-5.422210600277921