\begin{table}%t2
%\centering
\par
\caption{\label{tabfra}Percentage of fSGB and bSGB stars at several radial distances. }
\begin{tabular}{ccccccc}
\hline\hline $R_{\rm MIN}$ -- $R_{\rm MAX}$ &  $R_{\rm AVE}$ & $INSTR$ & $N_{\rm SGB}$
& $N_{\rm {\it f}SGB}/N_{\rm {\it b}SGB}$ (A)& $N_{\rm {\it f}SGB}/N_{\rm {\it b}SGB}$ (B)& $N_{\rm {\it f}SGB}/N_{\rm {\it b}SGB}$
(C) \\ \hline
0.0--2.5 & 0.80 & ACS   & 1746 &  0.60~$\pm$~0.03 & 0.69~$\pm$~0.03 & 0.53~$\pm$~0.03 \\
0.8--3.5 & 1.80 & WFPC2 &  105 &  0.56~$\pm$~0.09 & 0.52~$\pm$~0.09 & 0.54~$\pm$~0.09 \\
2.5--8.0 &      & G-B   &  303 &  0.49~$\pm$~0.07 & 0.53~$\pm$~0.07 & 0.51~$\pm$~0.07 \\
\hline 
0.0--0.4 &  0.28 & ACS  & 443  & 0.59~$\pm$~0.06 & 0.69~$\pm$~0.07 & 0.54~$\pm$~0.05 \\
0.4--0.7 &  0.57 & ACS  & 444  & 0.57~$\pm$~0.05 & 0.67~$\pm$~0.06 & 0.53~$\pm$~0.05 \\
0.7--1.2 &  0.89 & ACS  & 443  & 0.53~$\pm$~0.05 & 0.62~$\pm$~0.06 & 0.49~$\pm$~0.05 \\
1.2--2.5 &  1.54 & ACS  & 443  & 0.50~$\pm$~0.05 & 0.58~$\pm$~0.06 & 0.46~$\pm$~0.05 \\
0.8--3.5 &  1.80 & WFPC2& 105  & 0.56~$\pm$~0.09 & 0.52~$\pm$~0.09 & 0.54~$\pm$~0.09 \\
2.5--3.4 &  2.98 & G-B  & 100  & 0.41~$\pm$~0.08 & 0.44~$\pm$~0.08 & 0.40~$\pm$~0.08 \\
3.4--4.9 &  4.08 & G-B  & 101  & 0.47~$\pm$~0.10 & 0.55~$\pm$~0.11 & 0.49~$\pm$~0.10 \\
4.9--8.0 &  6.09 & G-B  & 100  & 0.50~$\pm$~0.11 & 0.54~$\pm$~0.12 & 0.52~$\pm$~0.11 \\
\hline
\end{tabular}
\end{table}