id	definition
A	Default Interest Rate
B	Default Note Holder's Rate
C	Current Note Rate
D	Debenture
E	Current Pass Through Rate
F	Security or Pass Through Rate
G	Security or Pass Through Rate Floor
H	Security or Pass Through Rate Ceiling
J	Weighted Average Note Rate
K	Servicing Fee
L	Lender Paid Mortgage Insurance Portion
M	Mortgage Note
N	Guarantee Fee Per Contract
P	Original Annual Interest Rate
Q	Original Index Value
S	Security or Pass Through Margin
W	Weighted Average Interest Rate
X	Accounting Net Yield Rate