\begin{table}%t1
\caption{The mean radius for different deviation criteria, the minimum and mean number of points used in the fits, the correlation coefficient between the radius variation and the sunspot number, and the last column shows the correlation coefficient between the radius variation and the North polar limb brightening.}\label{tab1}
%\centering
\par
\begin{tabular}{cccccc}
\hline  \hline
\multicolumn{1}{c}{}& \multicolumn{1}{c}{Radius} & \multicolumn{2}{c}{\# Points} & \multicolumn{2}{c}{Correl. coefficient}\\
\hline
& & Min.& Mean & Sunspot & Bright.\\
\hline
$\pm$30 & 976.6 $\pm$ 1.5 & 258 & 338.1 & 0.88 & --0.85\\
$\pm$20 & 975.5 $\pm$ 0.9 & 236 & 324.9 & 0.69 & --0.67\\
$\pm$15 & 975.1 $\pm$ 0.7 & 218 & 317.2 & 0.47 & --0.50\\
$\pm$10 & 974.8 $\pm$ 0.6 & 154 & 308.0 & 0.19 & --0.24\\
polar & 974.4 $\pm$ 0.8 & 91 & 120.5 & --0.64 & 0.63\\
\hline
\end{tabular} 
\end{table}