1. ForeComp::PGDP
    Price Index for Gross National Product/Gross Domestic Product (PGDP)
  2. ForeComp::RGDP
    Real Gross National Product/Gross Domestic Product (RGDP)
  3. ForeComp::TBILL
    3-Month Treasury Bill Rate (TBILL)
  4. ForeComp::UNEMP
    Civilian Unemployment Rate (UNEMP)