\begin{table}[htbp]
\centering
\caption{DADOS-INI4-Laplace2DNU.}
\begin{tabular}{ccccc}
\toprule
$N$ & $l_1$ & $l_{\infty}$ & $p_{E}^{*}$ - $l_1$ & $p_{E}^{*}$ - $l_{\infty}$
\\ \midrule

  33&1.3004667882E-04&8.9615818167E-04&&\\
  65&3.2461465192E-05&2.2417737920E-04&2.0022295312E+00&1.9991126969E+00\\
 129&8.1124371667E-06&5.6052674755E-05&2.0005208152E+00&1.9997855860E+00\\
 257&2.0279020860E-06&1.4013585408E-05&2.0001474032E+00&1.9999570982E+00\\
 513&5.0694558295E-07&3.5033524265E-06&2.0000851983E+00&2.0000180886E+00\\
\bottomrule
\end{tabular}
%\label{tab:addlabel}
\end{table}
