\begin{table}[htbp]
\centering\small
\caption{Empirical-Bayes priors for the innovation standard deviation of cell deviations}\label{tab:priors}
\begin{threeparttable}

\begin{tabular}{lrr}
\toprule
Class / level & Prior median $\tau$ (\\% per month) & Prior variance of $\log\tau^2$ \\
\midrule
house / region & 3.66 & 0.24 \\
house / mrc & 2.07 & 5.35 \\
house / municipality & 7.32 & 1.79 \\
condo / region & 1.89 & 0.76 \\
condo / mrc & 1.89 & 7.98 \\
condo / municipality & 1.18 & 11.30 \\
plex / region & 2.81 & 0.07 \\
plex / mrc & 1.70 & 7.63 \\
plex / municipality & 4.16 & 3.73 \\
\bottomrule
\end{tabular}
\begin{tablenotes}\footnotesize\item Grid EM over all cells of a level with at least six observed months; $\tau$ is the monthly standard deviation of the latent deviation from the parent path.\end{tablenotes}
\end{threeparttable}
\end{table}