Year	annual %
1961	2.4242691453568246
1962	2.4591683887649505
1963	2.45273537621474
1964	2.5248495547813574
1965	2.5519527675047504
1966	2.380386717056137
1967	2.3006237964715175
1968	2.2983295801661185
1969	2.258947616977264
1970	2.2397042123968016
1971	2.3280997101749
1972	2.3989981192933025
1973	2.620135384509576
1974	3.546794149118708
1975	3.888547462733323
1976	3.8782932768229332
1977	3.9364929917011025
1978	4.009728510776323
1979	4.011835136872066
1980	4.0341056547113086
1981	4.030408186043119
1982	3.813917835671368
1983	2.6231983824298815
1984	1.0040993372622162
1985	0.4838175021542228
1986	0.48373103205416373
1987	0.24968358128173956
1988	-0.43213766043533425
1989	-0.30676892889895613
1990	0.11345508393167296
1991	-0.0322830195318124
1992	-0.30685640367726885
1993	0.24663999294942635
1994	2.332293095179235
1995	2.4743251956733543
1996	2.3480531061659677
1997	2.372797268592518
1998	2.244825963788107
1999	2.3115602007117984
2000	2.481157570441693
2001	2.35736218795092
2002	2.2072368912242455
2003	2.140454089630095
2004	2.175199488524538
2005	2.3506623543222074
2006	2.568182038342531
2007	2.7110482034352708
2008	2.684801634216967
2009	2.6058908674386156
2010	2.2313141545101627
2011	1.8179643001252812
2012	1.9193095529172155
2013	2.093914269319299
2014	2.5004046167480194
2015	2.7978829408243855
2016	2.7665655706259615
2017	2.8759346131836474
2018	2.776181710772037
2019	2.4427449913836163
2020	2.268373771950595
2021	2.174542801105032
2022	2.0654163038161806
2023	1.9956554716127974