Year	annual % growth
1981	9.32749490445022
1982	-11.315576515008487
1983	17.0989547181388
1984	-7.668332264675797
1985	19.822872418527908
1986	-8.558199823720685
1987	24.545888314188048
1988	14.535955722228692
1989	-9.1938225184456
1990	-6.058096215756464
1991	4.049327542371955
1992	-26.90000000099407
1993	0.6000003688006785
1994	-3.100000082458209
1995	3.999997154160212
1996	8.792420199993373
1997	-30.04771811627056
1998	10.28986796068368
1999	-13.147408082988207
2000	4.669310614962427
2001	3.8666515496284433
2002	9.430982747943958
2003	3.6573753298727354
2004	5.4834463276340415
2005	9.632062705268666
2006	7.277959641823074
2007	7.816646995561598
2008	4.2360029914609925
2009	0.9353264375538259
2010	7.0441106118829
2011	1.5386027488065679
2012	-0.4411758038181546
2013	-1.5286272502919758
2014	0.6542632293823942
2015	3.2000302305337414
2016	1.6797502442580168
2017	3.894347874738685
2018	5.317567456085513
2019	5.07143237890071
2020	-2.6300521955731426
2021	9.341587555489866
2022	3.8202678341978498
2023	1.0134760999415278