Series Size	Period	% C	% D	% E
30 years	1931-1960	58.54	0	41.46
	1961-1991	54.35	0	45.65
	1991-2020	59.52	0	40.48
60 years	1931-1990	45.84	14.58	39.58
60 years	1961-2020	47.83	32.61	19.56
90 years	1931-2020	42.86	21.43	35.71