\begin{table}%t1
\caption{Parameters and return level estimates. The values are obtained for a threshold of $u=149.4$.}              
\label{tab:value_fit}      
\small%\centering
\par
\begin{tabular}{c c c}    
\hline\hline              
Parameter & Estimate & 95\% confidence interval  \\    
\hline                       
   $\sigma$ &  27.157 & [23.525, 31.745]  \\      
   $\xi$    & $-0.155$  & [--0.251, 0.035] \\
   $-\sigma/\xi+u$ & 324.0 & [270.0, 990.0] \\
11-year return level & 187.8 & [180.2, 203.0] \\
100-year return level & 228.4 & [208.1, 253.8] \\
\hline                                   
\end{tabular}
\end{table}