Summary of survey data from the four schools.
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Additional characteristics are given in parentheses: R = rural, U = urban; S = single-sex, C = co-educational; F = fee paying, N = non-fee paying. No. unique denotes the number of uniquely identifiable students who completed the survey across all rounds. Total contacts gives the number of identifiable contacts reported across all participants.
创建时间：
2018-07-25
