tr_real_yield_curve: Daily treasury par real yield curve rates
Description
The par real curve, which relates the par real yield on a Treasury Inflation
Protected Security (TIPS) to its time to maturity, is based on the closing market
bid prices on the most recently auctioned TIPS in the over-the-counter market.
The par real yields are derived from input market prices, which are indicative
quotations obtained by the Federal Reserve Bank of New York at approximately 3:30 PM
each business day. Treasury began publishing this series on January 2, 2004.
At that time Treasury released 1 year of historical data.