\begin{tabular}{lcccccc}
\hline
System  & \multicolumn{2}{c}{Jovein} \\
\cline{2-7}
& Literature & Optimized \\
\hline
\hline
W--B--AA & 191.72 & 40.84 \\
W--BA--AA & 27.78 & 24.61 \\
\hline
Total & 219.50 & 65.45 \\
\hline
\end{tabular}