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1\begin{tabular}{lrrrrrrrrr}2\toprule3Radius & $k=1$ & $k=3$ & $k=5$ & $k=7$ & $k=10$ & $k=15$ & $k=20$ & $k=30$ & $k=50$ \\4\midrule5$\le 0.5$ km & 20.1 & 17.4 & 16.9 & 16.7 & \textbf{16.7} & 16.7 & 16.8 & 17.0 & 17.0 \\6$\le 1$ km & 20.7 & 17.8 & 17.2 & 17.0 & \textbf{17.0} & 17.1 & 17.3 & 17.6 & 18.0 \\7$\le 2$ km & 21.0 & 18.0 & 17.5 & 17.2 & \textbf{17.2} & 17.4 & 17.5 & 17.8 & 18.3 \\8$\le 5$ km & 21.3 & 18.2 & 17.6 & 17.4 & \textbf{17.3} & 17.5 & 17.6 & 18.0 & 18.5 \\9$\le 10$ km & 21.3 & 18.2 & 17.6 & 17.4 & \textbf{17.3} & 17.5 & 17.6 & 18.0 & 18.4 \\10$\le 25$ km & 21.3 & 18.2 & 17.6 & 17.4 & \textbf{17.3} & 17.5 & 17.6 & 18.0 & 18.4 \\11\bottomrule12\end{tabular}13