Year	annual % growth
1970	8.892015745057208
1971	-1.7606898769481063
1972	-5.915227268468399
1973	7.832144471026808
1974	0.25678769332290585
1975	-8.66359848930857
1976	4.372093715017172
1977	5.071410619408951
1978	0.9386085981034569
1979	-3.1914574736567545
1980	2.806358854811819
1981	-13.15619957019014
1982	-4.536621205117569
1983	6.895534391454049
1984	7.4473899616658485
1985	5.64402351250979
1986	7.767361939010641
1987	-1.3812525193276457
1988	9.020252847071177
1989	7.950800575721843
1990	2.3825169729006603
1991	0.43944749229601143
1992	2.595317695950115
1993	-7.349458700652022
1994	5.844727322321532
1995	5.57704839494852
1996	7.66287308102298
1997	7.159944042395281
1998	6.506446945044473
1999	6.333872044105021
2000	1.4848280907967961
2001	3.8620256831159736
2002	-6.723909774228133
2003	-1.972796907391384
2004	0.9555993011263837
2005	3.4400044722865886
2006	6.591348132725173
2007	15.070020407097061
2008	-2.279816983519808
2009	-11.898979553626305
2010	-1.6489670878582245
2011	2.061058547046457
2012	-6.030844529077129
2013	-0.5749764284384327
2014	-1.332493691449912
2015	29.140273397584167
2016	-6.739790687327101
2017	4.163422459153551
2018	3.89397611590158
2019	7.668502105109695
2020	-6.297034430525258
2021	4.6717482829150185
2022	1.0044811379644756
2023	-0.9232372158721347