Year	annual % growth
1968	9.036132862526685
1969	2.762397931005168
1970	6.45165069205342
1971	0
1972	0
1973	9.090897975973618
1974	6.018499318588383
1975	12.227086238731673
1976	4.66925581350111
1977	2.6022478801622384
1978	5.072438343037234
1979	0
1980	2.7586274063934297
1981	2.6845701205072743
1982	9.150334726164132
1983	11.37724073919128
1984	20.43009982545925
1985	10.044650613220597
1986	-3.448277553388479
1987	2.521005698140911
1988	13.421565845437613
1989	6.49999358520401
1990	1.8779272673915983
1991	2.1505450820790344
1992	-0.3007507774466518
1993	0.9049683495318703
1994	1.4947685979643808
1995	2.4830406701147325
1996	0.3548015060452059
1997	1.4999901520416472
1998	1.5000052510365975
1999	1.5000072217998621
2000	1.9999875809630652
2001	1.6619291180336688
2002	4.675066675349598
2003	1.6614230834176595
2004	5.676083452100627
2005	17.53725168813925
2006	4.118009855536144
2007	3.8912304075516317
2008	-8.27971313706908
2009	-4.265034733093941
2010	0.4171613921978974
2011	3.918237531349405
2012	2.465723901270934
2013	3.1784777815179694
2014	3.2576153954962876
2015	2.6379647036631724
2016	-7.046024543027869
2017	-7.866908755368684
2018	-1.2046605417096146
2019	-5.176750098089016
2020	-29.635927729620406
2021	-28.20114010892513
2022	1.1256982240741564