\documentclass{article}
\usepackage{threeparttable}
\usepackage{multirow}
\usepackage{booktabs}
\usepackage{xcolor}
\usepackage{tikz}
\begin{document}
\begin{table}[!ht]
\setlength\tabcolsep{0pt}
\centering
\begin{threeparttable}
\begin{tabular}{@{\extracolsep{2ex}}*{4}{cc@{\hskip 4.0pt}c@{\hskip 8.0pt}c}}
\toprule
1, 1 & 1, 2 & 1, 3 & 1, 4 \\[4.0pt]
2, 1 & 2, 2 & 2, 3 & 2, 4 \\[8.0pt]
3, 1 & 3, 2 & 3, 3 & 3, 4 \\
4, 1 & 4, 2 & 4, 3 & 4, 4 \\
\bottomrule
\end{tabular}
\end{threeparttable}
\end{table}
\end{document}