\begin{table}[htbp]
\centering
\caption{DADOS-INI5-Laplace2DNU.}
\begin{tabular}{ccccc}
\toprule
$N$ & $l_1$ & $l_{\infty}$ & $p_{E}^{*}$ - $l_1$ & $p_{E}^{*}$ - $l_{\infty}$
\\ \midrule

  65&3.1631509482E-05&2.2417737920E-04&&\\
 129&7.9051934872E-06&5.6052674755E-05&2.0004897246E+00&1.9997855860E+00\\
 257&1.9761190650E-06&1.4013585408E-05&2.0001308997E+00&1.9999570982E+00\\
 513&4.9400239833E-07&3.5033524265E-06&2.0000799236E+00&2.0000180886E+00\\
\bottomrule
\end{tabular}
%\label{tab:addlabel}
\end{table}
