Year	annual %
1961	2.0152078464969296
1962	1.6166594386137427
1963	1.4707384763073528
1964	1.363770618120372
1965	1.2315507266991754
1966	1.0814066403415357
1967	0.8944517435269371
1968	0.6838557797926245
1969	0.5216660844659158
1970	0.35255639640388237
1971	-0.0502891637452852
1972	-0.09750728145364107
1973	-0.12910744475981528
1974	-0.1513622892413495
1975	-0.15791305432277933
1976	-0.18032558390903275
1977	-0.25363825778586346
1978	-0.3275094741313036
1979	-0.38292216041018673
1980	-0.20803003133709666
1981	0.6036910452676872
1982	1.5201367227107452
1983	1.8397610176225858
1984	1.6067301480992506
1985	1.1059492856988458
1986	0.4664243342015735
1987	-0.14328360660321177
1988	-0.5691876006092946
1989	-0.5059946944242224
1990	-0.030199619714313612
1991	0.9439420758041525
1992	1.993638019142537
1993	1.825154561674426
1994	1.684887650909276
1995	1.562224460716845
1996	1.4585465788822476
1997	1.3725571913815489
1998	1.3138600004686811
1999	1.2809785025887803
2000	1.2647767653763746
2001	1.0866148590239686
2002	0.25502660687749884
2003	0.4517809363025538
2004	0.6942168203712091
2005	0.6565878607056935
2006	0.644773541447411
2007	0.6456317314533994
2008	0.6563595738070592
2009	0.6668502569836471
2010	0.6771038086433446
2011	0.7502349214527959
2012	0.889066544285665
2013	0.9646415535545229
2014	0.9908111776011949
2015	1.0137838216533877
2016	1.0336549531006145
2017	1.0482372659591426
2018	1.0532040076081717
2019	1.066856844061212
2020	1.1485935956298126
2021	1.1902414265710668
2022	1.135164956824387
2023	1.1095933557070856