\begin{table}%t1
%\centering
\par
\caption {\label{Tab:DataSet}Number of sources in the 1FGL catalog for specific criteria.  }
\begin{tabular}{lrr} \hline \hline
\noalign{\smallskip}
 & Number & Percentage \\ \hline
All & 1451 & 100\% \\ 
 $F_{10{-}100~\rm GeV}$ & 287 & 20\% \\
 z & 390 & 27\% \\
$F_{10{-}100~\rm GeV}$  + $z$ & 72 & 5\% \\ 
$F_{10{-}100~\rm GeV}$  + $z$ + NC & 57 & 4\% \\ 
$F_{10{-}100~\rm GeV}$  + $z$ + C &  15 & 1\% \\ \hline
FSRQs & & \\
$F_{10{-}100~\rm GeV}$  + $z$ + NC & 12 & $<$1\% \\ 
$F_{10{-}100~\rm GeV}$  + $z$ + C &  6 & $<$1\% \\ \hline
\end{tabular}
\tablefoot{$F_{10{-}100~\rm GeV}$ -- significant flux in the highest energy bin; $z$ -- known redshift; NC -- no significant curvature detected in the spectrum; C -- significant curvature detected in the spectrum; FSQR -- source is of type FSRQ.}
\end{table}