\begin{table}[htbp]
\centering\small
\caption{Completeness of characteristics by year of sale, all raw rows (including land, non-residential and unmatched sales)}\label{tab:completeness_supp}
\begin{threeparttable}

\begin{tabular}{lrrrrrr}
\toprule
Variable (\% non-missing) & 2021 & 2022 & 2023 & 2024 & 2025 & 2026 \\
\midrule
Floor area & 79.6 & 81.6 & 86.5 & 88.8 & 88.2 & 85.2 \\
Year built & 69.8 & 77.0 & 86.4 & 88.9 & 88.4 & 85.3 \\
Lot area & 99.6 & 99.7 & 99.8 & 99.8 & 99.8 & 98.1 \\
Storeys & 90.8 & 90.1 & 91.2 & 91.6 & 92.0 & 92.9 \\
Physical link & 89.9 & 89.4 & 90.5 & 90.9 & 91.2 & 92.2 \\
Building genre & 86.3 & 85.6 & 87.0 & 87.4 & 87.8 & 88.8 \\
Provider style (banned) & 12.8 & 51.4 & 82.5 & 85.2 & 84.8 & 81.8 \\
Roll identifier & 98.8 & 98.8 & 99.1 & 99.4 & 99.5 & 99.3 \\
\bottomrule
\end{tabular}
\begin{tablenotes}\footnotesize\item The provider's building style is backfilled over time and is excluded from every model (time-correlated missingness). Lower shares in 2021 reflect the larger share of land and unclassified rows, not missing data in the headline sample (Table~\ref{tab:completeness}).\end{tablenotes}
\end{threeparttable}
\end{table}