\begin{table}%t5
\caption{\label{allsh}Coefficient to transform the literature data (Pz05, B04, P02, and
BH90) into the T98~system.}
\small%\centerline
 {
  \begin{tabular}{l|rrl|rrl|rrl|rrl}
    \hline\hline
    &&&&&&&&&&&& \\[-8pt]
Index & $a$ & $c$  & rms & $a$ & $c$  & rms  & $a$ &  $c$  & rms & $a$ & $c$  & rms \\
      &  Pz05 &&   & B04  & &  &   P02 && & BH90 && \\
\hline
Mg2    &0.731 & 0.017 &0.033 & 0.000 &--0.020&0.003 &0.730 &0.070&0.033    &0.000& 0.015 &0.022\\
Mgb    &0.764 & 0.424 &0.572 & 0.000 &0.000 &0.186 &0.681&0.240 &0.631$^a$&0.000&--0.27&0.508\\
Fe5270 &0.000 & 0.000 &0.790 & 0.000 &0.000 &0.161 &0.000&--0.353&0.422$^b$&0.639&0.731&0.762\\
Fe5335 &0.000 &0.000  &0.454 & 0.000 &0.000 &0.208 &0.000&0.000 &0.485    &     &     &     \\ 
\hline
\end{tabular}}
\medskip
$^a$ We have not considered B015 in the fit data;
$^b$~we have not considered B012 in the fit data.
\end{table}