Nature Index tables

The world's leading countries and institutions for high–quality science, ordered by weighted fractional count (WFC) for 2013. Also shown are the total number of articles, and the change in WFC from 2012. Articles are from the 68 natural science journals that comprise the Nature Index (see Guide to the Nature Index, page S94.)

Table 1 Top 100 countries

Table 2 Top 200 institutions

Table 3 Top institutions: Life sciences

Table 4 Top institutions: Earth and environmental sciences

Table 5 Top institutions: Chemistry

Table 6 Top institutions: Physical sciences

Table 7 Top institutions in Nature and Science journals