\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}}*{7}{lllllll}}
\toprule
\textbf{No} & \textbf{Variable} & \textbf{Stats / Values} & \textbf{Freqs (\% of Valid)} & \textbf{Graph} & \textbf{Valid} & \textbf{Missing} \\[6.0pt]
\midrule
1 & \begin{tabular}{@{}c@{}}floatmissing \\ \char`[Float64?]\end{tabular} & \begin{tabular}{@{}c@{}}\end{tabular} & \begin{tabular}{@{}c@{}}\end{tabular} & \raisebox{-.5\height}{\begin{tikzpicture}\end{tikzpicture}} & \begin{tabular}{@{}c@{}}0 \\ (0\%)\end{tabular} & \begin{tabular}{@{}c@{}}3 \\ (100\%)\end{tabular} \\[6.0pt]
2 & \begin{tabular}{@{}c@{}}justmissing \\ \char`[Missing]\end{tabular} & \begin{tabular}{@{}c@{}}\end{tabular} & \begin{tabular}{@{}c@{}}\end{tabular} & \raisebox{-.5\height}{\begin{tikzpicture}\end{tikzpicture}} & \begin{tabular}{@{}c@{}}0 \\ (0\%)\end{tabular} & \begin{tabular}{@{}c@{}}3 \\ (100\%)\end{tabular} \\
\bottomrule
\end{tabular}
\begin{tablenotes}[flushleft]
\footnotesize
\item[]Dimensions: 3 x 2
\item[]Duplicate rows: 2
\end{tablenotes}
\end{threeparttable}
\end{table}
\end{document}