\begin{table}
\centering
\begin{tabular}[t]{lrr}
\toprule
cyl & SD & N\\
\midrule
4 &  & 11\\
6 &  & 7\\
8 &  & 14\\
mpg & \num{6.03} & 32\\
\bottomrule
\end{tabular}
\end{table}
