Year	annual %
1961	1.74248589326313
1962	1.76416144136616
1963	1.78558753423887
1964	1.80576581139999
1965	1.82573756324991
1966	1.84770391274863
1967	1.87118012803339
1968	1.90058131538076
1969	1.89620887618083
1970	1.84479382429184
1971	1.77725108759672
1972	1.70990195436202
1973	1.65573775283264
1974	1.60377806503843
1975	1.55812893148471
1976	1.53001622355939
1977	1.52588112839517
1978	1.56371611341284
1979	1.65683799355502
1980	1.77346304539696
1981	1.88885416460152
1982	2.0180877460392
1983	2.13426156443151
1984	2.24281182263411
1985	2.37033270524635
1986	2.49443422710579
1987	2.60007682223029
1988	2.65148057242348
1989	2.62520688380786
1990	3.49072387036051
1991	4.03433954932101
1992	3.21952468826643
1993	3.08278482668984
1994	3.01968491213543
1995	2.80029938952256
1996	2.83513743678971
1997	2.05716146068419
1998	1.89125537226619
1999	2.25588851011695
2000	1.96313638467112
2001	1.29599678025488
2002	1.55168555991374
2003	2.24174813408231
2004	2.12923941806619
2005	1.9786677950531
2006	2.06291427897393
2007	2.29335572388692
2008	2.40819421004136
2009	2.43976227038861
2010	2.45827846352306
2011	2.47131110815721
2012	2.44875299812511
2013	2.44231614129791
2014	2.48293200818758
2015	2.54927671891363
2016	2.58950004128743
2017	2.56349381271807
2018	2.53344244221774
2019	2.5376470778001
2020	2.51225012110646
2021	2.44431721949133
2022	2.39091413366776
2023	2.36211734721627