For some reasons my table does not center which is odd since I am doing exactly the same with another table in the same tex file and it works. Could someone help me?
\documentclass[
10pt,
a4paper,
oneside,
headinclude,footinclude,
BCOR5mm,
]{scrartcl}
\usepackage[scale=0.8]{geometry}
\usepackage[flushleft]{threeparttable}
\usepackage{gensymb}
\usepackage{amsfonts}
\usepackage{booktabs}
\usepackage{amsmath}
\usepackage{caption}
\begin{document}
\begin{table}[hbt]
\centering
\caption{Indicators used by the ARWU and weight associated with each indicator}
\begin{tabular}{lc}
\toprule
\textbf{Indicators} & \textbf{Weight} \\
\midrule
Number of alumni & 10\% \\
Staff winning Nobel Prizes and Fields Medals & 20\% \\
Number of highly cited researchers selected by Thomson Reuters & 20\% \\
Number of articles published in journals of Nature and Science & 20\% \\
Number of articles indexed in SCI - ESSCI & 20\% \\
Per capita performance & 10\% \\
\bottomrule
\end{tabular}
\begin{tablenotes}
\small
\item Abbreviations: SCI, Science Citation Index; ESSCI, Expanded and Social Sciences Citation Index. \\
\end{tablenotes}
\label{tab:label}
\end{table}
\end{document}

