Year	annual %
1961	5.405126232599855
1962	5.127225788956835
1963	5.246125138636046
1964	5.60807992131565
1965	5.802707708879467
1966	4.405541799712282
1967	4.835840025836163
1968	3.6650090103161403
1969	4.383165725955678
1970	-9.01221302099053
1971	-1.2971784958647277
1972	-5.918306556816674
1973	5.132387065477843
1974	-18.523812579816294
1975	-16.5392973149347
1976	3.0339760452978197
1977	6.853972720332521
1978	11.799452565593953
1979	23.60416185411229
1980	4.4363122153203705
1981	-10.900465833101137
1982	4.759101621202234
1983	1.666424520229242
1984	12.002916531490655
1985	2.7964057640526647
1986	-0.1792425522010035
1987	1.0450335639776682
1988	0.4108352129349697
1989	4.7008640567336215
1990	-3.481588741183998
1991	-6.048806366664934
1992	-5.843050922473509
1993	-1.8472357778999395
1994	1.102406562502182
1995	2.4424309539597004
1996	2.385033479914796
1997	-0.4227395591073275
1998	2.9813572837856555
1999	5.513551243904828
2000	2.6288792127887177
2001	1.1901062351231673
2002	1.3593448781022062
2003	-2.5740337961495925
2004	-0.46992270582263984
2005	1.9943966542443263
2006	1.1038292524489606
2007	0.027364578941458717
2008	-3.704543642427012
2009	-5.5454030809039665
2010	0.12006123940469138
2011	-0.632148519837628
2012	1.889639395068457
2013	-3.767298841276684
2014	0.9361786757963841
2015	0.07962799537327214
2016	-1.782023887675038
2017	2.01529294955958
2018	1.8929268334212423
2019	-2.003655927853174
2020	-21.79346607145544
2021	14.997164429850685
2022	10.220515621147428
2023	1.9826105845098994