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1% Auto-generated by scripts/10_stage_e_figures.py — do not edit numbers.2\begin{table}[t]\centering\begin{adjustbox}{max width=\textwidth}3\begin{threeparttable}4\caption{Sample construction by decade}\label{tab:sample_construction}5\small\begin{tabular}{lrrrr}6\toprule7 & 1992–1999 & 2000–2009 & 2010–2019 & 2020–2026 \\8\midrule9Raw bar rows & 626,407,882 & 2,331,426,585 & 2,657,373,989 & 2,071,067,068 \\10Duplicate rows merged & 0 & 0 & 0 & 10,128 \\11OHLC-violation flags & 90 & 10 & 0 & 0 \\12Split-window flagged rows & 772,707 & 1,811,211 & 815,630 & 897,786 \\13Regular-hours bar rows & 611,399,568 & 2,278,758,476 & 2,599,857,420 & 1,940,283,624 \\14Distinct symbols & 26,519 & 22,052 & 18,761 & 46,985 \\15Trading days & 2,022 & 2,515 & 2,516 & 1,569 \\16\bottomrule\end{tabular}17\begin{tablenotes}[flushleft]\footnotesize18\item Notes: Full panel (all instruments). Duplicates merged by the rule19open=first, high=max, low=min, close=last, volume=sum. Flags mark rows;20no raw data are deleted. Split windows are $\pm 1$ trading day around21high-confidence overnight-ratio events (Section~\ref{sec:data}).22\end{tablenotes}\end{threeparttable}23\end{adjustbox}\end{table}