\begin{table}%T1
 \caption{\label{tb1}Angular rates of rotation and internal
 errors obtained from the
comparison of FK5~and Hipparcos proper motions for different sets of
stars ($d$~stands for stellar distance).}
%\centering
\par
   \begin{tabular}{ccccc}  
   \hline \hline    
 Author                       & Number   & $\omega_x$ & $\omega_y$ & $\omega_z$  \\
                              & of stars & [mas/yr]   & [mas/yr]   & [mas/yr]  \\ 
 \hline\\  
 Mignard \& Froeschl\'{e}     & 1233 & $-0.30\pm0.10$ & $0.60\pm0.10$ & $0.70\pm0.10$ 
   \\   
 (Mignard \& Froeschl\'{e}
  \cite{migfroe2000})         &            &                &               &     \\
 Schwan                       & 1151       & $-0.34\pm0.08$ & $0.74\pm0.08$ & $0.89\pm0.08$  
   \\
 (Schwan \cite{schwan22001})  &            &                &               &      \\
 Walter \& Hering             & 1151       & $-0.30\pm0.07$ & $0.65\pm0.07$ & $0.77\pm0.08$   
    \\
 (this paper)                 &            &                &               &       \\
                              &  529       & $-0.39\pm0.10$ & $0.58\pm0.11$ & $0.62\pm0.12$  
   \\
                              &($d>100$~pc)&          &               &             \\
                              &  208 & $-0.61\pm0.16$ & $0.70\pm0.18$ & $0.59\pm0.19$ 
    \\
                              &($d>200$~pc)&          &               &              \\   
        \hline \\
   \end{tabular}
\par
\end{table}