Specialization indexes of countries for 254 subject categories, by input and by output

This is a Supplementary Material of the manuscript "<strong>Measuring and interpreting the differences of the nations’ scientific specialization indexes by output and by input</strong>". The file contains complete data on 199 countries in 254 subject categories.本文件为论文《基于产出与投入维度测度并解读各国科学专业化指数（scientific specialization indexes）的差异》的补充材料。该文件收录了199个国家在254个学科分类项下的完整数据。