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Quality Codes

The quality codes indicate a variety of qualifiers for the data which are explained in the index. The data should be assessed in conjuction with the disclaimer provided at the start of this module. Code 190 is raw data which is missing. Missing data can accumulate within a selected period and may exceed 15% of all the data for that period. Any summarised data where 15% or more of the data is missing will return "missing" for that period although up to 85% of raw data could still be available for the period.