Year	annual % growth
1972	12.655231232377773
1973	-4.015944029289827
1974	4.645267455985632
1975	-3.928229669946802
1976	3.542319263956827
1977	16.434212455963618
1978	3.02499085748687
1979	6.627520342823729
1980	0.35848266208211044
1981	-1.3130421903587006
1982	-5.347444120132835
1983	5.472622771883323
1984	5.687843281745003
1985	-0.034921621381727164
1986	11.663600394528501
1987	3.6617607290204717
1988	5.546312700644023
1989	-0.1350125946225802
1990	3.224041519064457
1991	4.634801258147746
1992	-0.19969730479881775
1993	1.9176277296156314
1994	9.281802695323123
1995	1.8266302308069413
1996	6.757663656621446
1997	3.8048959025730085
1998	4.1115776928509575
1999	2.794338086246256
2000	0.0676937651959264
2001	1.9548013356434524
2002	0.6683533644495014
2003	0.4937948169301194
2004	5.820420482914528
2005	8.251183144701884
2006	14.343971412713287
2007	4.8518268757704135
2008	2.1832438239732426
2009	-2.0770122356617264
2010	6.113814665103405
2011	3.1297070826649787
2012	7.400607787217098
2013	2.9512831457604563
2014	4.1862003336885465
2015	8.685497263520887
2016	17.033778210576415
2017	3.0831782583537404
2018	6.87970744173964
2019	6.540173511127392
2020	-0.22779684039274173
2021	9.946109719974586