Year	annual % growth
1969	6.231330513436802
1970	0.5641647195993187
1971	6.528638961615101
1972	6.975862321564662
1973	7.681831382156318
1974	10.439522991595695
1975	12.870686621415246
1976	11.304309539116403
1977	8.318075592580271
1978	1.9681210597562995
1979	-1.4648674527204975
1980	-4.36427269573845
1981	1.480397926850145
1982	-1.4467720490043945
1983	-5.827622039221495
1984	-6.7255405766166945
1985	2.8922690470317747
1986	5.14307337362176
1987	5.519124345057989
1988	6.090010278183769
1989	-6.139028753460849
1990	4.056630852913415
1991	7.217606098697686
1992	5.335738785257462
1993	-1.315070293954733
1994	-2.730866778897777
1995	2.1483114596239687
1996	-2.6707741386979507
1997	-0.11361531792441326
1998	-0.11206918457908444
1999	-4.816353291179183
2000	3.394048878366334
2001	2.8445620888448246
2002	-3.808504284372958
2003	-3.5934954340026337
2004	15.218191536568654
2005	12.22413634642865
2006	10.998683862173039
2007	11.399900694148428
2008	6.79075568692393
2009	-0.8499224740610885
2010	-0.07835990623767941
2011	5.115452774532784
2012	19.615181399873066
2013	5.1601351508139
2014	-0.3610952520932784