Year	annual %
1961	-1.7573665451509015
1962	1.7334936217276748
1963	3.2175672328137637
1964	0.18200095239460268
1965	4.675275098222258
1966	3.6151395012487058
1967	2.464450705929778
1968	5.368505039102686
1969	2.5924764273306096
1970	4.622263507346446
1971	3.9884586841860283
1972	5.408742673677153
1973	4.986996710394067
1974	2.8789904807691187
1975	-0.49201423560545265
1976	2.8063413634889827
1977	6.062211655694512
1978	3.4518053140553064
1979	2.122829666695594
1980	-1.9625141121774732
1981	-4.901968729817455
1982	-9.809756109332312
1983	0.048679873272902796
1984	5.072576128757419
1985	-2.013635909101737
1986	2.7055206826373706
1987	2.015346171365991
1988	0.7832988887412426
1989	3.0049371976221124
1990	0.954542164963982
1991	-0.2965315132770172
1992	6.488284180094169
1993	4.473266457850087
1994	2.0093629362075234
1995	1.7138596088915818
1996	-0.9607707135120762
1997	3.1297474917917185
1998	4.8559714199267745
1999	2.077614594454815
2000	1.8388735662643825
2001	1.6009828013412033
2002	1.6759375167195998
2003	2.6737760269880226
2004	2.848457986196266
2005	2.456798968961067
2006	5.799838281529858
2007	6.707755266456175
2008	3.298011333300451
2009	-2.203057167270714
2010	4.012638871466606
2011	3.116526116104666
2012	3.6278124737371513
2013	1.3195127890256941
2014	2.4145640070143486
2015	2.5731786107049146
2016	3.1515133904779873
2017	3.143265985853887
2018	1.6613083084616278
2019	1.53529056591222
2020	-4.994101582952879
2021	7.289650116799024
2022	4.009202565425213
2023	4.479819237433816