\begin{table}[H]
\centering
\footnotesize
\caption{Statistics of the graph datasets used for evaluation.}
\setlength\tabcolsep{2pt}
\begin{tabular}{l|llll}
\toprule
\bfseries{Dataset}       & \bfseries{\# of Nodes} & \bfseries{\# of Edges} & \bfseries{ Metric}   & \bfseries{\# of Classes} \\
\midrule
Cora          & 2,708       & 5,429       & Accuracy & 7             \\
Citeseer      & 3,327       & 4,732       & Accuracy & 6             \\
PubMed        & 19,717      & 44,338      & Accuracy & 3             \\
ogbn-arxiv    & 169,343     & 1,166,243   & Accuracy & 40            \\
ogbn-proteins & 132,534     & 39,561,252  & ROC-AUC  & 112           \\
ogbn-products & 2,449,029   & 61,859,140  & Accuracy & 47 \\
\bottomrule
\end{tabular}
\label{tab:data_stat}
\end{table} 