\begin{table}%t2
%\centering
\par
\caption {\label{tab2}Factions of each population of the carbonaceous dust emission in the spectrum
of the 12 sources of the selected sample.}
\begin{tabular}{lccccc}
\hline \hline
\noalign{\smallskip}
& \multicolumn{5}{c}{Fraction of the emission ($\%$)}\\
\cline{2-6}
 \noalign{\smallskip}
 Object      & VSG & PAH$^0$ & PAH$^+$ & PAH$^x$ & dBF \\
\hline
\par
HD 135~344    &   66        & 0   &   1       &   24     &   9  \\
HD 169~142    &   38        & 25  &   11      &   26     &   0  \\
HD 342~82     &   30        & 13  &   0       &   51     &   6 \\
HD 97~048     &   37        & 0   &   10      &   50     &   3  \\
HD 34~700     &   61        & 14  &   0       &   18     &   7  \\
RR Tau       &   27        & 37  &   0       &   36     &   0  \\
HD 141~569    &   34        & 0   &   12      &   51     &   3  \\
BD+404~124   &   0         & 61  &   29      &   10     &   0  \\
CD-42 11~721  &   8         & 57  &   23      &   12     &   0 \\
IRS 48       &   27        & 0   &   13      &   58     &   2  \\
GoHam        &   54        & 0   &   32      &   14     &   0  \\
LkH$\alpha$215     &   25        & 43   &   20       &   12    &    0  \\
\hline
\end{tabular}
\end{table}