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Table 1 Average percentile rank of each state’s proliferation metric grouped by proliferation stage

From: The nuclear network: multiplex network analysis for interconnected systems

Proliferation Stage Average Rank Standard Deviation Count
No Activity (0) 0.45 0.27 4518
Explore (1) 0.65 0.23 204
Pursue (2) 0.86 0.11 174
Acquire (3) 0.93 0.10 216
  1. States with and without nuclear weapons (Stage=3 and 0, respectively) are differentiated with the statistical significance of one standard deviation. The count gives the number of country-year instances used to derive each average rank