5-year dataset: paired-concept deviations

The paired-concept means and standard deviations of annual co-occurrence rates from the 5-year data set. File format: tab-delimited table; carriage return & newline terminated. Columns: concept id1 - Unique numeric code identifying the first of the paired concepts; concept id2 - Unique numeric code identifying the second of the paired concepts; mean - The mean of the annual co-occurrence rates (1.0 = 100%); std - The standard deviation of the annual co-occurrence rates. The rows are arranged in ascending order by concept_id1, concept_id2.