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Codes and Frequencies



An 'X' indicates the category is available for that sample

0NIUXXXXXXXXXXX
1NoXXXXXXXXXXX
2YesXXXXXXXXXXX
7Unknown-refusedXXXXXXXXXXX
8Unknown-not ascertainedXXXXXXXXXXX
9Unknown-don't knowXXXXXXXXXXX