\begin{table}%t1
  \caption{Occurrence rate of solution with frequency-locking period 
  in sets of 200 solutions for different values of 
  $\gamma_{\rm i}$ and $\beta$. In each set the initial 
  value $\xi_{\rm i}$ is uniformly distributed between 0 and 1, 
  while the other parameters are kept constant.}
  \label{tab:fl}
  %\centering
\par
  \begin{tabular}{ccccc}   
    \hline\hline           
     & $\beta=0$ & $\beta=3$ & $\beta=5$ & $\beta=10$ \\ 
    \hline
    $\gamma_{\rm i}=0$ & 0 & 22\% & 32\% & 45\% \\
    $\gamma_{\rm i}=\pi/2$  & 0 & 24\% & 30\% & 48\% \\
    $\gamma_{\rm i}=\pi$    & 0 & 22\% & 30\% & 44\% \\
    \hline               
  \end{tabular}
\end{table}