Year	annual % growth
1971	0.44586018878793254
1972	7.058480953604203
1973	8.45490570026324
1974	4.011424466492002
1975	-0.7388397296935665
1976	-3.2696510599841844
1977	-3.2485181671377887
1978	1.7867482877449845
1979	-0.4710854215766176
1980	-0.24036241707709394
1981	2.046044467712747
1982	-1.3787529218866723
1983	3.0823063280282668
1984	3.8740208860987195
1985	1.367016965192235
1986	4.118504166340969
1987	2.8393324825452453
1988	2.9862265853286942
1989	1.0791930658629951
1990	0.5598577591097325
1991	-2.3367409084516737
1992	0.3629110163932978
1993	3.649600692308084
1994	6.4401605014527945
1995	4.153553852886759
1996	5.022487078600847
1997	2.7405075246187636
1998	2.822262801142344
1999	3.0610710825723686
2000	1.4138359466729753
2001	2.7041952931416517
2002	4.978370672375121
2003	6.205728434527487
2004	5.343960604655408
2005	4.610973432313898
2006	2.871879178644903
2007	3.794423856961558
2008	-0.7985169106838299
2009	1.529933342907924
2010	2.1908602010022094
2011	3.1552242045880092
2012	2.3091446373181697
2013	3.8183224338539787
2014	3.307254337803741
2015	4.226429541244144
2016	6.423486234773577
2017	4.822692351717478
2018	4.55870221203152
2019	2.4244296154267744
2020	0.06880549260652913
2021	5.975848526091937
2022	2.7429717318671294