Provides the data for the gene expression enrichment analysis conducted in the package 'ABAEnrichment'. The package includes three datasets which are derived from the Allen Brain Atlas: (1) Gene expression data from Human Brain (adults) averaged across donors, (2) Gene expression data from the Developing Human Brain pooled into five age categories and averaged across donors and (3) a developmental effect score based on the Developing Human Brain expression data. All datasets are restricted to protein coding genes.