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1\begin{table}[htbp]2\centering\small3\caption{Completeness of the two main characteristics and share of new constructions in the headline sample, by year and class}\label{tab:completeness}4\begin{threeparttable}56\begin{tabular}{lrrrrrr}7\toprule8Headline sample (\% of sales) & 2021 & 2022 & 2023 & 2024 & 2025 & 2026 \\9\midrule10Houses: floor area & 99.1 & 99.2 & 99.2 & 99.2 & 99.0 & 99.1 \\11Houses: year built & 99.0 & 99.1 & 99.1 & 99.1 & 98.9 & 99.0 \\12Houses: new construction (\\% of sales) & 3.9 & 3.8 & 2.1 & 1.5 & 0.7 & 0.0 \\13Condominiums: floor area & 98.2 & 98.4 & 98.4 & 98.6 & 98.4 & 98.5 \\14Condominiums: year built & 99.9 & 99.8 & 99.8 & 99.8 & 99.8 & 99.8 \\15Condominiums: new construction (\\% of sales) & 0.5 & 0.6 & 0.1 & 0.1 & 0.0 & 0.0 \\16Plexes: floor area & 97.7 & 97.7 & 97.7 & 97.8 & 97.8 & 97.9 \\17Plexes: year built & 97.9 & 97.7 & 97.9 & 98.0 & 98.0 & 98.0 \\18Plexes: new construction (\\% of sales) & 1.1 & 0.9 & 0.7 & 0.3 & 0.1 & 0.0 \\19\bottomrule20\end{tabular}21\begin{tablenotes}\footnotesize\item Lot area, storeys, physical link and building genre are complete for more than 90\% of headline sales in every year (results/profile/completeness\_by\_year.csv). The provider's building style (12\% present in January 2021, 87\% in January 2025) is excluded from every model. New constructions (sold in the roll's construction year) fall to zero in 2025--2026 because the roll vintage lags construction.\end{tablenotes}22\end{threeparttable}23\end{table}24