Year	annual %
1961	1.3882071232971072
1962	2.6530686482162196
1963	3.4422021105734615
1964	2.1236344903173006
1965	0.05122881296261994
1966	0.6047551384858849
1967	2.0924514057069956
1968	1.72997204104324
1969	2.8696152281832497
1970	3.139244381279326
1971	3.195849201176941
1972	4.036929120349811
1973	3.2163539859666628
1974	1.3545874295814144
1975	0.6378064358725197
1976	4.341857172691817
1977	5.593457814772435
1978	2.6146181643742494
1979	1.8010579292504758
1980	0.836694004481231
1981	-1.2379651292428093
1982	-5.561072307883677
1983	-4.045141551140361
1984	-1.607323733282513
1985	-3.0589139228019775
1986	-1.917939002836789
1987	1.0600082045550465
1988	1.258403751173958
1989	0.20056549617855524
1990	-0.7202374116690748
1991	1.6118451071568245
1992	1.998242548032934
1993	1.6739009733736765
1994	2.2660161363100286
1995	2.6947649438802728
1996	0.35944203034534894
1997	1.576305154580112
1998	2.1290051378557706
1999	1.1356994821322814
2000	1.0167732378001375
2001	1.3166175707151098
2002	1.0190829664484653
2003	1.6193380407499376
2004	1.6670192881190786
2005	2.1350599702427075
2006	2.5833846384800694
2007	3.3280704658100717
2008	2.3575292866393767
2009	-2.1533103996194143
2010	1.5643057031431056
2011	1.7716035595834398
2012	1.3241695011159322
2013	1.8968023520187955
2014	2.7470509745411817
2015	3.37939847828504
2016	2.360481518089898
2017	1.6061079429765357
2018	1.903939365619408
2019	3.097926666258985
2020	-3.1192094008547286
2021	6.878661111167645
2022	2.752589058279426
2023	2.1909350137974286