\begin{table}%t7
%\centering
\par
\caption{Statistics of the age distribution of the sample of G-K stars. "PMS'' denotes stars
younger than 100~Myr, "Pl\_ZAMS'' stars as old as the Pleiades, "UMa'' stars 
with an age of $\sim300$~Myr, and "Hya+'' older than the Hyades. The latter age group also contains~17 evolved stars (LC~IV-III, III, and II). The total number of G-K stars is~141.
\label{age}} 
\begin{tabular}{lllll} 
\noalign{\smallskip}     
\hline 
\hline 
\noalign{\smallskip}    
       & \multicolumn{4}{c}{Age group} \\ 
       & PMS & Pl\_ZAMS & UMa  &  Hya+ \\ 
       & $<$$100$~Myr & 100~Myr & $\sim$$300$~Myr & $>$$660$~Myr \\ 
\hline 
\noalign{\smallskip}    
number  G-K& 8 & 40  & 19  & 74 \\ 
fraction G-K& 6\% & 28\%  & 13\%  & 52\% \\
\hline 
\end{tabular}
\end{table}