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ICPSR data undergo a confidentiality review and are altered when necessary to limit the risk of disclosure. ICPSR also routinely creates ready-to-go data files along with setups in the major statistical software formats as well as standard codebooks to accompany the data. In addition to these procedures, ICPSR performed the following processing steps for this data collection: Checked for undocumented or out-of-range codes..

ICPSR（国际政治与社会研究校际联盟，Inter-university Consortium for Political and Social Research）会对数据集开展保密审查，并在必要时对数据进行修改以降低数据泄露风险。ICPSR还会常规提供可即用型数据文件，配套适配主流统计软件格式的配置脚本，以及随附于数据集的标准代码簿。除上述流程外，ICPSR还针对本次数据集执行了以下处理步骤：检查未标注代码或超出取值范围的代码项。