\begin{table}%t5 %\footnotesize \caption{\label{table5}Sample statistics.} \begin{tabular}{lr} \hline \hline & Number of targets \\ \hline Sample & 92\phantom{$^a$} \\ \hline {\rm [Ne~{\sc ii}] observations} & 92\phantom{$^a$} \\ {\rm [Ne~{\sc ii}] detections} & 58\phantom{$^a$} \\ {\rm [Ne~{\sc ii}] non-detections} & 34\phantom{$^a$} \\ \hline X-ray observations & 67\phantom{$^a$} \\ X-ray detections & 64\tablefootmark{a} \\ X-ray non-detections & 3\phantom{$^a$} \\ \hline {\rm [Ne~{\sc ii}]} \& X-ray observations & 67\phantom{$^a$} \\ {\rm [Ne~{\sc ii}]} detection \& X-ray detection & 40\tablefootmark{a} \\ {\rm [Ne~{\sc ii}]} non-detection \& X-ray detection & 24\phantom{$^a$} \\ {\rm [Ne~{\sc ii}]} detection \& X-ray non-detection & 1\phantom{$^a$} \\ {\rm [Ne~{\sc ii}]} non-detection \& X-ray non-detection & 2\phantom{$^a$} \\ \noalign{\smallskip} \hline \end{tabular} \tablefoot{\tablefoottext{a}{T Tau S included in X-ray detections (for intrinsic $L_{\rm X}$)}} \par \end{table}