Year	annual % growth
1961	9.677371586912727
1962	-8.823489701559808
1963	-17.742009326236527
1964	28.43137605292344
1965	3.816839040822572
1966	-3.6764047008847456
1967	3.8171141981109002
1968	8.823648508170805
1969	22.97304155990969
1970	2.230761040225076
1971	10.931831276666259
1972	1.0171853688702583
1973	-4.700043209718345
1974	1.1072530994539846
1975	1.7920584613600283
1976	6.943386028736299
1977	20.89644443496823
1978	-15.922914769770983
1979	10.211561217212491
1980	8.107009616910261
1981	-14.975938069559945
1982	-19.94288418773658
1983	0.3995090899677365
1984	-4.134388603851065
1985	-14.104711879088299
1986	11.04077664609973
1987	12.935919957749007
1988	-3.5197308690471374
1989	-21.601560147235503
1990	-16.85008916949684
1991	29.941678557608697
1992	32.643466528451654
1993	14.363934207582759
1994	12.635527414645992
1995	-12.635443723758172
1996	13.10324684049968
1997	16.592766879140328
1998	4.89937718054631
1999	-16.92166900979602
2000	-3.8079101222611484
2001	-11.93354813240282
2002	-37.5944884935092
2003	40.191528355383696
2004	29.61340872158604
2005	14.796331561091634
2006	6.866507089971492
2007	20.330060238116502
2008	6.68344541722719
2009	-23.071543821462384
2010	32.54212125148527
2011	16.092739932696972
2012	-11.18506718063368
2013	4.669025524387706
2014	-6.2235305850957445
2015	4.556709021092104
2016	-5.083992419118928
2017	15.452352566205036
2018	-9.847098058632483
2019	-19.96991976885026
2020	-6.411507425414271
2021	32.11308960108613
2022	7.606646099922813
2023	-1.2021950599542777