\begin{table}%t2
\caption{Emissivities (2--10~keV) of different types of low-luminosity objects
 ($L_{\rm 2-10~keV}<10^{42}$~\lum) in the local Universe in units of
$10^{38}~h_{75}$~\lum~Mpc$^{-3}$.}\label{budget}
%\centering
\small
\begin{tabular}{lc}
\hline \hline
Class&${\rm d}L/{\rm d}V$\\
\hline
LLAGN&$\sim$$3$\\
Clusters of galaxies&$\la$$0.1$\\
Starforming galaxies (HMXBs)&0.2--0.3\\
Normal galaxies (LMXBs)&0.2--0.4\\
\hline
Sum of the above&$\sim$$4$\\
\hline
This paper, $(\log L_{\rm 2-10~keV}\la42)$&$4.4\pm3.9$\\
\hline
\end{tabular}
\end{table}