Year	annual %
1961	2.96076774216987
1962	2.96833294053147
1963	2.96364886328605
1964	2.94648495182463
1965	2.91655822736742
1966	2.892898998102
1967	2.87689869818263
1968	2.83920897924912
1969	2.79093529514182
1970	2.75104970153011
1971	2.69083549864948
1972	2.65869550891282
1973	2.66524884180568
1974	2.67561830179423
1975	2.71309293079913
1976	2.75523274166375
1977	2.80338020901366
1978	2.89233988341998
1979	2.99746908180893
1980	3.05979433171767
1981	3.07988678998304
1982	3.06554808029501
1983	3.03316668642351
1984	3.01676643471271
1985	3.0192527210682
1986	3.02498088258463
1987	3.03416672053803
1988	3.0392872021459
1989	3.0502491493597
1990	3.0884637933207
1991	3.10507190767746
1992	3.11277645830288
1993	3.15410250429525
1994	3.21380051668598
1995	3.32127674930526
1996	3.36659163498146
1997	3.33553203112791
1998	3.37956145442033
1999	3.41011370974371
2000	3.42375005583503
2001	3.45653213318518
2002	3.47215473567164
2003	3.50446100307726
2004	3.54918298730086
2005	3.58817494323712
2006	3.61442583471313
2007	3.64120636284668
2008	3.67254476327787
2009	3.70117077417358
2010	3.73070315116356
2011	3.74672017840573
2012	3.810576036689
2013	3.81820594100195
2014	3.78117877025801
2015	3.82885938381233
2016	3.86709120542471
2017	3.82693398223338
2018	3.78759649907003
2019	3.76544488542259
2020	3.72710072523223
2021	3.70742378461307
2022	3.71298781842953
2023	3.72576598230791