Year	annual %
1961	7.124713644042814
1962	-7.971333938912039
1963	13.5512287459768
1964	16.025003510101385
1965	6.963864953502849
1966	36.85927463489705
1967	36.96646543288912
1968	0.8484917357253892
1969	-1.2841296771502755
1970	9.936410099057497
1971	-0.11386613927585643
1972	1.846332865057974
1973	3.9162537699195923
1974	15.906911607972503
1975	87.9691490777112
1976	-1.8910875605192246
1977	13.511466300649616
1978	3.664738903097316
1979	6.065285706971736
1980	3.0647751534284
1981	7.710701816442906
1982	4.883180314858706
1983	2.4492126442191164
1984	16.856689265215593
1985	4.564129999603736
1986	-7.021732551413109
1987	0.6652764788854739
1988	2.2253763256551196
1989	5.297086760080475
1990	13.46146891484932
1991	14.978936424738663
1992	7.2832831603953
1993	13.87050259376808
1994	17.191302909356736
1995	51.266583046924495
1996	10.92141575027182
1997	15.621502445892176
1998	2.228200649357447
1999	11.10696264811304
2000	3.275406255242032
2001	-0.39263042460349595
2002	-5.2271498759774175
2003	20.361234787515812
2004	11.094870063601547
2005	9.030840205638086
2006	2.4615907257997662
2007	12.936093577718651
2008	14.453978663993453
2009	7.147661623904341
2010	3.187184724342515
2011	7.1914655174436035
2012	4.722857271259429
2013	2.6896899941436914
2014	4.732382803932339
2015	0.48591123775105416
2016	5.030130928529601
2017	8.162631479456323
2018	-0.6033287458391214
2019	2.4711601980004616
2020	6.7118516903107235
2021	2.8575059720018317
2022	15.91449920669234
2023	10.130127124565732