Year	annual % growth
1961	43.43793240702422
1962	-8.932334214096912
1963	-23.684549579102907
1964	13.793531777590843
1965	4.131902397575018
1966	12.434201732883167
1967	-18.35311174688748
1968	21.90233120586278
1969	26.94996239660452
1970	32.58858577677509
1971	21.769712074291988
1972	19.03084065197956
1973	17.05428425648803
1974	19.205405376383382
1975	14.58376362193286
1976	5.999516898967656
1977	15.952353718968709
1978	15.039153986598436
1979	24.78743699911938
1980	24.36955843653699
1981	12.398103305239474
1982	5.647824334169144
1983	627.7438947084609
1984	52.610441767068295
1985	46.05263157894737
1986	-3.6036036036036023
1987	-19.065420560747654
1988	-71.59353348729792
1989	22.76422764227641
1990	103.31125827814569
1991	-33.15492279153095
1992	13.74439512658374
1993	38.45076232981859
1994	36.40006315810936
1995	7.8007883976631405
1996	-52.08013243420505
1997	-25.772650616925702
1998	-164.5093533311965
1999	85.72667023836408
2000	49.332978306553514
2001	29.10546051322288
2002	-79.35432512349469
2003	435.6159997266419
2004	-53.716777462028865
2005	41.226521686234804
2006	-17.65648403357622
2007	-137.63508392279928
2008	-17.939592696116634
2009	67.38937224104134
2010	-6.063092977874646
2011	7.870458638051872
2012	10.98123485397953
2013	2.846750992018542
2014	5.657952322882792
2015	3.0023464727539704
2016	4.985805827243837
2017	5.6901606772352835
2018	8.523940665444314
2019	2.3598471385752475
2020	-6.897225780652278
2021	4.074672472499955
2022	4.025414955904338
2023	5.830358220535018