Year	annual %
1961	1.6551809752091202
1962	1.6718026395637935
1963	1.6908330322777232
1964	1.6868065663871334
1965	1.6933684149843344
1966	1.7452307400719747
1967	1.7265842538484577
1968	1.7264167984266265
1969	1.7353962869691486
1970	1.7763633127512009
1971	1.71363797556279
1972	1.7265368553120055
1973	1.7843884213630616
1974	1.8482815597143656
1975	1.9161718415235072
1976	1.9023109627992767
1977	1.985125271425673
1978	2.056698346843433
1979	2.2046518440405976
1980	2.188151749875857
1981	2.021317795183137
1982	2.0630209091272462
1983	1.8748261235910917
1984	1.7221998039436102
1985	1.745373798155498
1986	1.7538100736302056
1987	1.75863042117588
1988	1.7826313392118607
1989	1.8311048603445954
1990	1.76291840692177
1991	1.9745193968426804
1992	2.090641486054267
1993	2.0362632277938815
1994	2.0137692524690607
1995	2.0816354591474777
1996	2.0634014757421255
1997	1.988652815685569
1998	1.9982510944321206
1999	1.9701614416544118
2000	2.002627088688854
2001	1.8332942447395482
2002	1.8324173598181233
2003	1.814277403067038
2004	1.8046166787333675
2005	1.7904817475120183
2006	1.7557380391978796
2007	1.7442774010781932
2008	1.7429105553406856
2009	1.738718290629464
2010	1.7210422699508285
2011	1.7187908311694429
2012	1.677000044679346
2013	1.63075039830089
2014	1.6110500275115243
2015	1.571882489483059
2016	1.5607586439309955
2017	1.5499862514814566
2018	1.5087070800874756
2019	1.4682045839094116
2020	1.4436291654463957
2021	1.3990178183613295
2022	1.3609719871671615
2023	1.3574771113020034