periodicity_code	periodicity_text	display_level	selectable	sort_sequence
A	12-month percent change, current dollars	1	T	4
B	Current Dollar (Nominal)	0	F	1
C	Constant Dollar (Real)	0	F	5
D	Response Rates	0	F	9
I	Current dollar index number	1	T	2
P	Usable rate, updates	1	T	12
Q	3-month percent change, current dollars	1	T	3
R	Usable rate, initiations	1	T	11
S	Survey response rate	1	T	10
T	Constant dollar index number	1	T	6
X	3-month percent change, constant dollars	1	T	7
Z	12-month percent change, constant dollars	1	T	8