11 1 SUFFICIENT AND ALL OF ACCEPTABLE QUALITY
22 2 SUFFICIENT BUT PARTLY OF ACCEPTABLE QUALITY
33 3 INSUFFICIENT BUT ALL OF ACCEPTABLE QUALITY
44 4 INSUFFICIENT AND OF UNACCEPTABLE QUALITY
55 5 SOME MESSAGES NOT COMPLETE
66 6 SUSPECT OR WRONGLY CODED GROUPS COULD NOT BE INTERPRETED CON"    FIDENTLY
77 7 GROSS CODING ERRORS
88 8 TRANSMISSION SEQUENTIAL ORDER NOT OBSERVED
99 9 REPORT COMPLETELY GARBLED AND THUS DISCARDED
1010 10 DEFICIENCIES IDENTIFIED AND RECTIFIED
1111 11 DEFICIENCIES IDENTIFIED BUT NOT RECTIFIED
1212 12 DEFICIENCIES NOT IDENTIFIED
1313 13 MEASURING ERRORS
1414 14 MUTUAL INCONSISTENCY
1515 15 TEMPORAL INCONSISTENCY
1616 16 FORECAST ERROR
1717 17 BIAS
1818 18 IMPROVE SYSTEM OF QUALITY CONTROL
1919 19 EXPAND TRAINING PROGRAMMES
20123 123 MISSING VALUE
21