\providecommand{\ntables}{7}\providecommand{\algatables}{\StrLeft{ LSfminbnd posik noiseless}{\ntables}}\providecommand{\algbtables}{\StrLeft{ LSstep posik noiseless}{\ntables}}
\begin{tabularx}{1.0\textwidth}{@{}c@{}|*{5}{@{}r@{}X@{}}|@{}r@{}@{}l@{}}
\#FEs/D & \multicolumn{2}{@{}c@{}}{0.5} & \multicolumn{2}{@{}c@{}}{1.2} & \multicolumn{2}{@{}c@{}}{3} & \multicolumn{2}{@{}c@{}}{10} & \multicolumn{2}{@{}c@{}}{50} & \multicolumn{2}{@{}l@{}}{\#succ}\\\hline
\textbf{f23} & \multicolumn{2}{@{}c@{}}{\textit{6.3e+0}:68 \quad} & \multicolumn{2}{@{}c@{}}{\textit{4.0e+0}:292 \quad} & \multicolumn{2}{@{}c@{}}{\textit{2.5e+0}:603 \quad} & \multicolumn{2}{@{}c@{}}{\textit{2.5e+0}:603 \quad} & \multicolumn{2}{@{}c@{}|}{\textit{1.6e+0}:2487 } & 15 & /15\\
\algatables\hspace*{\fill} & \textbf{2} & \textbf{.1}\mbox{\tiny (2)} & 13 & \mbox{\tiny (21)} & \textbf{60} & \textbf{}\mbox{\tiny (58)} & \textbf{60} & \textbf{}\mbox{\tiny (96)} & 245 & \mbox{\tiny (292)} & 7 & /15\\
\algbtables\hspace*{\fill} & 3 & .1\mbox{\tiny (6)} & \textbf{12} & \textbf{}\mbox{\tiny (16)} & 126 & \mbox{\tiny (118)} & 126 & \mbox{\tiny (173)} & \textbf{130} & \textbf{}\mbox{\tiny (55)} & 11 & /15
\end{tabularx}