Year	annual %
1960	-0.765864332603765
1961	7.38699007717708
1962	3.69609856262894
1964	-0.792079207921113
1965	0.166333998420151
1966	4.03520425067445
1967	4.30965682357132
1968	1.79035960223018
1969	2.45039085983105
1970	-0.0880410855462474
1971	0.484652665370717
1972	4.83776673497443
1973	15.5095497002705
1974	24.3135598335014
1975	5.33009708749865
1976	4.14930555494793
1977	7.60126687769027
1978	7.92408985303782
1979	9.89736596559927
1980	19.703500522778
1981	12.6629930710215
1982	5.25907990316824
1983	3.7265366212408
1984	0.864898430279296
1985	2.43173123433475
1986	1.84167596806049
1987	2.46646112823951
1988	3.86273074733655
1989	5.35546507986216
1990	5.86399474375828
1991	5.70985259891396
1992	4.13914575077056
1993	3.31219168428468
1994	5.04774897680755
1995	5.81818181818192
1996	5.80510554737349
1997	5.62579747129104
1998	7.9947287502746
1999	0.284726459223034
2000	1.59196917460972
2001	1.62690887314091
2002	0.697308976625449
2003	1.8043499463572
2004	2.75914926231081
2005	4.54036919634535
2006	4.63747436011765
2007	2.24154095286802
2008	5.46848949649846
2009	-0.845716092316721
2010	3.24758842443723
2011	3.80879058139634
2012	3.01489950334994
2013	2.18488618530678
2014	1.8951418189878
2015	-0.900424963291569
2016	0.188149704448234
2017	0.665631893135106
2018	1.06389754183015
2019	0.706728601314311
2020	-0.845937147357041
2021	1.23039541318384
2022	6.07741228434321
2023	1.22802623546169