Year	annual % growth
1968	6.36693939908703
1969	12.807404544229087
1970	9.116840640993672
1971	1.4543934881422729
1972	1.1514515714004432
1973	17.79809930317046
1974	-2.018174891365817
1975	-4.963652401298788
1976	16.78113515966612
1977	0.8593572829087179
1978	0.9696515474707041
1979	6.665169859188353
1980	-5.564520294516001
1981	0.5552780092070293
1982	3.136490156571952
1983	1.9707343441282603
1984	5.361808873423101
1985	9.929940933754764
1986	8.478970641006626
1987	-1.1781497117539175
1988	4.224283273181257
1989	5.397678125761686
1990	2.375634744426904
1991	4.031750102842864
1992	-0.13087549216808725
1993	-1.4151303814985141
1994	13.289181110838115
1995	6.805663634456181
1996	3.13146165087619
1997	9.241918471552424
1998	7.581065487243038
1999	2.5474562690382783
2000	13.709928732262597
2001	2.4002008160815933
2002	6.371918042492638
2003	-1.0323122226992751
2004	7.15329024967042
2005	11.401348214544953
2006	13.965156492222476
2007	5.837965766726455
2008	4.770228409191702
2009	-11.943579038305785
2010	0.5406645698883921
2011	7.4436142978616715
2012	2.7089670225833373
2013	1.4706544004185815
2014	3.896705271848603
2015	4.560764216466893
2016	3.6622246856304486
2017	4.183152079331535
2018	5.092489122924931
2019	3.0106832915995767
2020	-2.7868584931655533
2021	8.816175873331417
2022	6.500945488969151
2023	8.565431580823684