Code:
\documentclass[a4paper,11pt,appendixprefix,bibliography=totoc,fleqn,pdftex,twoside,BCOR=15mm,DIV=12,cleardoublepage=empty]{scrbook}
\usepackage[utf8x]{inputenc}
\usepackage{amsfonts}
\usepackage{amsmath,amssymb,amsthm,txfonts,bm}
\usepackage[ngerman]{babel}
\usepackage[labelfont=bf]{caption}[2008/08/24]
\usepackage{graphicx}
\usepackage{pxfonts}
\usepackage{eulervm}
\usepackage{booktabs}
\begin{document}
\begin{table}[htb]
\centering
\begin{tabular}{ccr@{$\ \pm\ $}lr@{$\ \pm\ $}lr@{$\ \pm\ $}lc}
\toprule
K & Region & \multicolumn{2}{c}{$A$} & \multicolumn{2}{c}{$W$} & \multicolumn{2}{c}{$Q$} \\
\midrule
aaa & 3 & 1,11 & 1,11 & & & &\\
aaa & 2 & 1,11 & 1,11 & & & &\\
bbbbb & 3 & 1,11 & 1,11 & 4,44 & 4,44 & 4,44 & 4,44\\
bbbbb & 2 & 1,11 & 1,11 & 4,44 & 4,44 & 4,44 & 4,44\\
bbbbb & 3 & 1,11 & 1,11 & & & &\\
bbbbb & 2 & 1,11 & 1,11 & & & &\\
bbbb & 3 & 1,11 & 1,11 & 5,55 & 5,55 & 5,55 & 5,55\\
ccc & 2 & 1,11 & 1,11 & 5,55 & 5,55 & 5,55 & 5,55\\
dd & 3 & 1,11 & 1,11 & & & &\\
pdd & 2 & 1,11 & 1,11 & & & &\\
\bottomrule
\end{tabular}
\caption{UNTERSCHRIFT}\end{table}
\end{document}
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