Year	annual % growth
1961	7.500001089866942
1962	73.64341165874484
1963	19.196428324450693
1964	9.737827847520265
1965	0.6825951416550993
1966	-9.623532503079673
1967	10.185389922224644
1968	28.991487017706532
1969	28.99016283035408
1970	29.545497107539177
1971	3.5086582773972594
1972	3.578176124691751
1973	3.454550299582621
1974	3.514912411350494
1975	0.16976434598079493
1976	3.050940203408345
1977	10.855083380802895
1978	9.64385949273965
1979	4.465383400607095
1980	21.761825091604848
1981	9.255447424421817
1982	9.139499369460523
1983	17.262357418945285
1984	9.792477317311722
1985	-6.497342014789112
1986	-3.4744156415520138
1987	0.392670127488401
1988	13.037809675185258
1989	7.670129969147553
1990	6.9999999995199005
1991	-5.991437552199557
1992	0.7105247636899179
1993	7.955153651969752
1994	-2.638391557626278
1995	15.416196148657278
1996	4.155392040946751
1997	11.918274089635858
1998	8.96920387849562
1999	2.202086942293178
2000	-1.2106976567225587
2001	-5.67785031100172
2002	1.2774808215584699
2003	-2.5056556103156566
2004	-2.1806973979760187
2005	9.915286976221722
2006	4.052998615906418
2007	-17.03207510847008
2008	4.478556011267827
2009	15.963440011697159
2010	2.8200736616464894
2011	5.857567526274636
2012	-8.423954424429496
2013	-6.878883730994048
2014	6.671173698420148
2015	-4.533391504043422
2016	4.872868763874138
2017	2.113638025462919
2018	20.60767498093459
2019	-3.742078917037034
2020	-9.40212700989811
2021	-1.000003652378112
2022	-0.7312180437020146
2023	0.9905589575243283