\begin{table}%t1
\par
 \caption{\label{tbl2}Selected stars. }
 \small%\centerline
{
\begin{tabular}{@{}lcccccccccccccc}
\hline
\hline
  & & & $P$ & $U$ & $C$ & $D$ & $M$ & $R$ & `` '' &  &  & Total \\
\hline 
 ampl. $\ge$$T_{\rm h}$ & & & 209  & 493 & 0 & 17 & 15 &2 &	15 &  & & 751   \\
 $T_{\rm l}$ $\le$ ampl. $<$ $T_{\rm h}$  & & & 17  & 105  & 50 & 52 &78 &2 & 347 & & &  651   \\
 ampl. $<$   $T_{\rm l}$ &  & & 1  & 3 & 435 	& 99 & 20 &0 &447 & & & 1005   \\
\hline
Total &  &  & 227 & 601 & 485 & 168 & 113 & 4 &809 & &  & 2407 \\
 \hline
\end{tabular}}
\smallskip
Number of ``$P$'', ``$U$'', ``$C$'', ``$D$'',``$M$'', ``$R$'' and not-classified (`` '') stars, above the positive threshold
($T_{\rm h}$), between the positive and negative thresholds (\mbox{$T_{\rm h}=T_{\rm m}+{\rm err}_{+}$},
$T_{\rm l}=T_{\rm m}-{\rm err}_{-}$), 
and  below both of them. $T_{\rm m}$ denotes the threshold calculated according to the method 
presented in Fig.~\ref{fig:f2}. 
\end{table}