\begin{table}[htbp]\centering\footnotesize
\caption{Coverage of the regional sample against external business and population counts}\label{tab:external}
\begin{adjustbox}{max width=\textwidth}
\begin{tabular}{lrrrrr}\toprule
Region & Fabri-Ka stores & Business locations & Stores per 1\,000 businesses & Population & Stores per 100\,000 pop. \\\midrule
Bas-Saint-Laurent & 39 & 7\,441 & 5.24 & 204\,755 & 19.0 \\
Saguenay--Lac-Saint-Jean & 97 & 8\,709 & 11.14 & 286\,395 & 33.9 \\
Capitale-Nationale & 126 & 24\,239 & 5.20 & 814\,004 & 15.5 \\
Mauricie & 31 & 8\,130 & 3.81 & 289\,722 & 10.7 \\
Estrie & 165 & 16\,929 & 9.75 & 527\,340 & 31.3 \\
Montréal & 237 & 69\,910 & 3.39 & 2\,172\,259 & 10.9 \\
Outaouais & 36 & 8\,566 & 4.20 & 428\,751 & 8.4 \\
Abitibi-Témiscamingue & 21 & 4\,804 & 4.37 & 149\,441 & 14.1 \\
Côte-Nord & 16 & 2\,672 & 5.99 & 89\,621 & 17.9 \\
Nord-du-Québec & 3 & 932 & 3.22 & 47\,541 & 6.3 \\
Gaspésie--Îles-de-la-Madeleine & 30 & 3\,829 & 7.83 & 92\,084 & 32.6 \\
Chaudière-Appalaches & 102 & 15\,715 & 6.49 & 459\,158 & 22.2 \\
Laval & 25 & 13\,654 & 1.83 & 461\,509 & 5.4 \\
Lanaudière & 66 & 16\,524 & 3.99 & 569\,335 & 11.6 \\
Laurentides & 99 & 22\,002 & 4.50 & 679\,190 & 14.6 \\
Montérégie & 177 & 44\,787 & 3.95 & 1\,522\,372 & 11.6 \\
Centre-du-Québec & 61 & 9\,270 & 6.58 & 264\,820 & 23.0 \\
\bottomrule\end{tabular}
\end{adjustbox}
\begin{minipage}{0.95\textwidth}\vspace{2pt}\footnotesize\textit{Notes:} Business locations = ISQ, locations with employees, December 2025 (all industries; retail NAICS 44-45; manufacturing 31-33); population = ISQ 1 July 2025 provisional. Fabri-Ka stores are online storefronts of Quebec-based merchants discovered through certification registries, associations and search; coverage ratios are not sampling rates.\end{minipage}
\end{table}