\begin{tabular}{@{}lrrr@{}}
\toprule
Instances & count & median & 95th percentile \\
\midrule
near-circulant, stable endpoint & 15 & 3.91 & 4.90 \\
near-circulant, unstable endpoint & 15 & 0.54 & 0.96 \\
sign pattern, stable endpoint & 15 & 3.60 & 4.72 \\
sign pattern, unstable endpoint & 15 & 0.84 & 1.00 \\
random, stable endpoint & 15 & 3.01 & 13.26 \\
random, unstable endpoint & 15 & 0.70 & 1.07 \\
coNP gadgets, stable endpoint & 15 & 2.76 & 3.18 \\
coNP gadgets, unstable endpoint & 15 & 0.63 & 2.21 \\
\midrule
all & 120 & 2.26 & 4.85 \\
\bottomrule
\end{tabular}