\begin{table}%t5
%\centering
\par
\caption{Number of events before and after cuts for the 1ES~1426+428 data sets.
$N_\sigma$ is calculated after correcting for the $\sim $80\% data acquisition
efficiency.
\label{results1426tab}}
\begin{tabular}{llllll}
\hline\hline
 &  & \multicolumn{3}{c}{Number of events} & Significance\\
Data set &Cut & $N_{\rm \textit{\scriptsize{\rm On}}}$ & $N_{\rm \textit{\scriptsize{\rm Off}}}$ & $N_{\rm {\scriptsize{On}}}-N_{\rm {\scriptsize{Off}}}$ & $N_\sigma$\\
\hline
All data (SPV, $8.8~{\rm h}$) & Raw data & $675~340$ & $673~239$ & $2101$ &  \\
& Software trigger & $455~794$ & $453~660$ & $2134$ & $2.0$ \\
& All cuts & $64~230$ & $64~433$ & $-203$ & $-0.5$\\
\hline
\end{tabular}
\end{table}