Year	annual %
1963	14.285714285714285
1964	36.26101321585903
1965	-1.272984441301273
1966	10.417519443307409
1967	7.933271547729379
1968	24.57496136012365
1969	26.716294458229946
1970	16.166231505657095
1971	10.132983704813636
1972	4.447278911564625
1973	20.418464544492387
1974	50.90933675883984
1975	9.564983647686036
1976	43.01193981027151
1977	49.961401000714794
1978	10.890579420008008
1979	-2.6564192500128954
1980	2.7660025434506146
1981	9.939500189061908
1982	3.2345814117095286
1983	4.786927946209529
1984	19.38001300672014
1985	13.727316748380849
1986	2.7090690296233575
1987	-3.5833858347444543
1988	1.4710118724893015
1989	-8.080231448196347
1990	-2.5719518437958886
1991	0.11551809201868872
1992	-1.1854648231721416
1993	-1.3622857465346216
1994	46.783752194959696
1995	18.081763005937876
1996	3.926615064787925
1997	8.187893358187488
1998	6.017081315201308
1999	-1.6826586139871635
2000	-1.758462950933936
2001	4.557229420273815
2002	29.77880974438086
2003	-27.679337836825773
2004	7.567924810952249
2005	-0.1767925563306895
2006	13.16570964902923
2007	32.1527289898297
2008	8.016905864092463
2009	21.169784886704797
2010	19.120412193527088
2011	11.015796439272163
2012	4.855893160073135
2013	11.340164416661008
2014	14.177792563470106
2015	18.15469153070322
2016	11.038468343285684
2017	9.193404653851529
2018	13.396705242860435
2019	10.760981374400206
2020	21.10073510497918
2021	18.744977703403123
2022	8.98298280676063
2023	3.326395511877738