\begin{table}%t2
 \caption{The number of sources from each of the major classes
 detected by ISGRI are listed for new ($\equiv$IGRs) and previously-known
sources. Miscellaneous (Misc.) sources are Galactic objects that are not X-ray binaries (e.g. CVs, SNRs, AXPs, etc.) and Uncl. refers to the group of sources that have yet to be classified. }
 \label{tab_pop}
 %\centering
\small
    \begin{tabular}{lllllll} 
    \hline \hline
             & HMXBs     & LMXBs     & AGN        & Misc.     & Uncl.     &
Total  \\
\hline
 IGRs     & 32 (15\%) &  6 (3\%)  & 50 (23\%)  & 15 (7\%)  & 111 (52\%) &
214  \\
 previously-known & 46 (16\%) & 76 (27\%) & 113 (40\%) & 32 (11\%) & 18
(6\%)   & 285  \\
 \hline
 Total     & 78 (16\%) & 82 (16\%) & 163 (33\%) & 47 (9\%) & 129 (26\%)  &
499  \\
 \hline
\end{tabular}
\end{table}