\begin{tabular}{lr}
\toprule
Step & Firms \\
\midrule
fundamentals entities & 5,451 \\
>= 8 quarterly periods & 5,018 \\
+ 1m bars (>= 250 sessions) & 4,568 \\
+ bars after 2012-06 & 4,568 \\
+ not public administration & 4,568 \\
\bottomrule
\end{tabular}