Year	annual %
1961	1.9351422403774734
1962	1.9620504766639328
1963	1.97375162858377
1964	2.0217558121846224
1965	2.0580506250298356
1966	2.048655913410485
1967	2.0868792661810716
1968	2.0559653049812425
1969	1.9660452443515624
1970	1.9746978280485052
1971	2.208052030883323
1972	2.1242289814605613
1973	2.1466693466208255
1974	2.26276017201981
1975	2.2678816641673194
1976	2.3115931587231984
1977	2.217326444627176
1978	2.3774831414349933
1979	2.42975539082866
1980	1.8141757761910782
1981	1.5084591506943354
1982	1.974893958130977
1983	2.20557830340735
1984	2.164547170889989
1985	2.1113387125834038
1986	2.023208702649498
1987	2.0519903216599715
1988	2.014869426920882
1989	2.099657604189815
1990	2.050059672757797
1991	2.1191327041441923
1992	2.5755468636317005
1993	2.7150277780481957
1994	2.453113033641884
1995	2.4755049826639492
1996	2.6954432593315687
1997	2.526197091341629
1998	2.410978676712176
1999	2.4545565273981396
2000	2.3364516796347488
2001	2.338883997325752
2002	2.676467315961233
2003	2.7546961455334156
2004	2.5675217637426186
2005	2.5329410042689346
2006	2.6140165362681813
2007	2.6581015895259696
2008	2.389796526670125
2009	2.4069390613827437
2010	2.3600650316391665
2011	2.4259141554742456
2012	2.380543746057384
2013	2.2131440114112877
2014	2.127345441520646
2015	2.0159105333800227
2016	2.0677939812856465
2017	2.0907121209544925
2018	2.101170653416503
2019	2.15393684978568
2020	2.1268959323685834
2021	2.018468091761278
2022	1.952047597077538
2023	1.955004042355938