\begin{table}%t2
\caption{\label{Tab:completeness}Completeness levels in percent  for given  bands and\protect magnitudes.}
\vspace*{-2mm}
%\centerline
 { 
\begin{tabular}{lccc}
\hline \hline\noalign{\smallskip}
mag & $H$ & $K{\rm s}$ & $L'$ \\
\hline
12 & 100--100\tablefootmark{a} & 98--100\tablefootmark{a} & 93--96\tablefootmark{a} \\
13 & 100--100 & 96--98 & 84--91 \\
14 & 99--99     & 91--97 &  64--77 \\
15 & 97--99     & 83--92 & 54--69 \\
16 & 93--97  & 59--82 & 42--58 \\
17 & 83--91  &  47--70 & n.a. \\
18 & 66--82  &  28--50 & n.a.\\
19 & 50--70 & n.a.  & n.a.\\    
\hline
\end{tabular}}
\vspace*{-1mm}
\tablefoot{
\tablefoottext{a}{A high and a low value of estimated  completeness are given for each combination of band and magnitude.}}
 \end{table}