Year	annual % growth
1976	1.1765492739657475
1977	19.25852919808426
1978	5.42366902659181
1979	2.3698902556100734
1980	1.5810165919236425
1981	74.04114878619089
1982	3.4175844487491105
1983	-0.12360497524166192
1984	28.04574952950975
1985	-0.651997228029046
1986	-5.299052871862926
1987	-8.54712283671465
1988	7.746151989618085
1989	10.49762196034763
1990	-2.074532683216674
1991	-5.994096130266797
1992	-1.0755904556512377
1993	5.746837209597373
1994	-14.859257866942343
1995	-4.267381889578843
1996	4.49244145253644
1997	1.7000446082689535
1998	1.0688619505922645
1999	3.761526355581651
2000	-3.016934899806074
2001	-0.47189511626007175
2002	4.7043798533587164
2003	3.681010992936379
2004	8.581908477289474
2005	-4.871687716691426
2006	-1.3797479682072264
2007	8.3413074860796
2008	-2.653484268493017
2009	-2.138609757003721
2010	0.5133174815673271
2011	2.502589262462763
2012	1.8610315964222366
2013	1.8898603262607878
2014	0.8806876576660727
2015	3.014838949881721
2016	7.408040076311863
2017	1.5266063769591227
2018	-1.7885851758657196
2019	-4.820268296368425
2020	3.695537131769271
2021	-11.385557540188827