10 0 RESERVED 21 1 1-BIT INDICATOR OF QUALITY 32 2 2-BIT INDICATOR OF QUALITY 46 6 4-BIT INDICATOR OF QUALITY CONTROL CLASS ACCORDING TO GTSPP 57 7 PERCENTAGE CONFIDENCE 68 8 0 = NOT SUSPECTED, 1 = SUSPECTED, 2 = RESERVED, 3 = INFORMATION NOT REQUIRED 721 21 1-BIT INDICATOR OF CORRECTION 863 63 MISSING VALUE 9