\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{f8} & \multicolumn{2}{@{}c@{}}{\textit{1.0e+5}:85 \quad} & \multicolumn{2}{@{}c@{}}{\textit{6.3e+4}:111 \quad} & \multicolumn{2}{@{}c@{}}{\textit{4.0e+4}:125 \quad} & \multicolumn{2}{@{}c@{}}{\textit{2.5e+3}:430 \quad} & \multicolumn{2}{@{}c@{}|}{\textit{6.3e+1}:2106 } & 15 & /15\\
\algatables\hspace*{\fill} & \textbf{7} & \textbf{.9}\mbox{\tiny (0.6)}$^{\star4}$ & \textbf{6} & \textbf{.3}\mbox{\tiny (0.4)}$^{\star4}$ & \textbf{5} & \textbf{.8}\mbox{\tiny (0.5)}$^{\star4}$ & \textbf{3} & \textbf{.5}\mbox{\tiny (0.6)}$^{\star4}$ & \textbf{16} & \textbf{}\mbox{\tiny (35)}$^{\star}$ & 15 & /15\\
\algbtables\hspace*{\fill} & 160 & \mbox{\tiny (42)} & 129 & \mbox{\tiny (15)} & 122 & \mbox{\tiny (16)} & 76 & \mbox{\tiny (4)} & 37 & \mbox{\tiny (1)} & 15 & /15
\end{tabularx}