http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Pass-through yield and value tables for GNMA mortgage-backed securities
showing yields and values of pass-through pools of insured mortgages to maturity, and based on the most recent FHA mortgage mortality table, for both normal and deviant experience
computed by Financial Publishing Company.
"Incorporate FHA Experience 1957 through 1977."
Publication (Financial Publishing Company) ; no. 715