Year	annual %
1961	2.82854210231362
1962	2.82400739564471
1963	2.81672759393385
1964	2.82650721802994
1965	2.85878888473469
1966	2.9042134320401
1967	2.94125300076171
1968	2.95233288307507
1969	2.94810450750895
1970	2.94807856024493
1971	2.95231652493326
1972	2.95323687355495
1973	2.94715142248462
1974	2.87896324280468
1975	2.74133641512569
1976	2.6059051190583
1977	2.42353435366142
1978	2.3261812112817
1979	2.38695806475924
1980	2.47422555657384
1981	2.56437222074908
1982	2.63687199552555
1983	2.68453608445209
1984	2.71602779935722
1985	2.78197014177237
1986	2.87483360565634
1987	2.92152135159267
1988	2.90674570037734
1989	2.88470643804651
1990	2.88311000862987
1991	2.85544396696351
1992	2.80045967350139
1993	2.74627496579219
1994	2.65396577748329
1995	2.53020035291858
1996	2.41189015578578
1997	2.32607796078074
1998	2.29340313946298
1999	2.31639981025849
2000	2.35349186373024
2001	2.38007633836581
2002	2.41498169831971
2003	2.45996800523196
2004	2.50033904791585
2005	2.54126351828797
2006	2.60233440516001
2007	2.63281190597884
2008	2.63754388814397
2009	2.67674749775798
2010	2.71070159961371
2011	2.72203680436678
2012	2.72697235540654
2013	2.71181928883915
2014	2.71905100988297
2015	2.72463609047466
2016	2.7154429589038
2017	2.7179778377713
2018	2.71464328183934
2019	2.69763115886709
2020	2.68438184925041
2021	2.64538054494311
2022	2.57217015290678
2023	2.54699595340171