\begin{tabular}{lrr}
\toprule
Characteristic & studies & \% \\
\midrule
\textit{Property type} &  &  \\
condo\_apartment & 78 & 32.2 \\
single\_family & 74 & 30.6 \\
mixed & 64 & 26.4 \\
rental & 13 & 5.4 \\
unknown & 13 & 5.4 \\
\textit{Price measure} &  &  \\
transaction & 148 & 61.2 \\
listing & 55 & 22.7 \\
rent & 21 & 8.7 \\
appraisal & 15 & 6.2 \\
unknown & 2 & 0.8 \\
transaction\_and\_listing & 1 & 0.4 \\
\textit{Document type} &  &  \\
journal & 205 & 84.7 \\
conference & 19 & 7.9 \\
working\_paper & 13 & 5.4 \\
thesis & 5 & 2.1 \\
\textit{Time fixed effects} &  &  \\
False & 145 & 59.9 \\
True & 97 & 40.1 \\
\textit{Location fixed effects} &  &  \\
False & 141 & 58.3 \\
True & 101 & 41.7 \\
Median sample size (observations) & 4,448 &  \\
Median publication year & 2021 &  \\
Median data-period midpoint & 2014 &  \\
Models per study (median / max) & 4 / 98 &  \\
Coefficients per study (median / max) & 45 / 1164 &  \\
\bottomrule
\end{tabular}