\begin{table}%t2
\caption{Disk data: after 0.1, 1.0 and 1.5 Myr of evolution.}\label{table:2}  
%\centering
\small
\begin{tabular}{c| c c c}
 \hline\hline
Time~(Myr) & 0.1 & 1.0 & 1.5\\
Scenario ID & I & IV & V\\
 \hline
$M_{{\rm gas}}~(M_{\rm J})$ & 30 & 7 & 3\\
$M_{{\rm solid}}~({M}_{\oplus})$ & 24.8 & 24.8 & 23.5\\
$m_{{\rm max}}~({M}_{\oplus})$ & 0.55 & 1.07 & 1.83\\
$N$ & 51 & 24 & 16\\
$N'$ & 4087 & 2171 & 1585\\
$f_{{\rm proto}}$ & 0.20 & 0.47 & 0.51\\[2pt]
 \hline
\end{tabular}
\end{table}