This question is related to this post (accepted answer): Table formatting.
After compiling the code below I obtain this outcome: 
I have tried several alternatives such as adding backslashes or "&" symbols but I am still unable to obtain the desired results.
Thanks in advance.
\documentclass[a4paper,12pt]{scrreprt} \usepackage{booktabs} \begin{document} \begin{table} \centering \begin{tabular}{@{} lcccc @{}} % suppress vertical whitespace at start and end \toprule Company& \multicolumn{3}{c}{Exceedances} & No.\ of Obs.\ \cmidrule(lr){2-4} & \multicolumn{2}{c}{Empirical} & Expected\ \cmidrule(lr){2-3} \cmidrule(lr){4-4} &standard & standardized\\ % make columns 2 and 3 narrower &normal & Student's-$t$\ \midrule Company 1&1&5&9&13\ Company 2&2&6&10&14\ Company 3&3&11&15\ Company 4&4&8&12&16\ \midrule[\heavyrulewidth] % use "thick" \midrule instead of \bottomrule \multicolumn{4}{@{}l}{\footnotesize An additional hint about a detail} \end{tabular} \caption{Here is the caption.} \label{labelhere} \end{table} \end{document} 