periodicity_code	periodicity_text	display_level	selectable	sort_sequence
A	12-month percent change, current dollars	0	T	3
I	Current dollar index number	0	T	1
P	Usable rate, updates	0	T	9
Q	3-month percent change, current dollars	0	T	2
R	Usable rate, initiations	0	T	8
S	Survey response rate	0	T	7
T	Constant dollar index number	0	T	4
X	3-month percent change, constant dollars	0	T	5
Z	12-month percent change, constant dollars	0	T	6