\begin{table}[htbp]
\centering
\caption{DADOS-INI2-Laplace2DNU.}
\begin{tabular}{ccccc}
\toprule
$N$ & $l_1$ & $l_{\infty}$ & $p_{E}^{*}$ - $l_1$ & $p_{E}^{*}$ - $l_{\infty}$
\\ \midrule

   9&2.3058872853E-03&1.3258750310E-02&&\\
  17&5.5900759604E-04&3.3720119258E-03&2.0443822017E+00&1.9752632583E+00\\
  33&1.3842106602E-04&8.4679449233E-04&2.0138043666E+00&1.9935258477E+00\\
  65&3.4524903581E-05&2.1193859312E-04&2.0033542300E+00&1.9983655656E+00\\
 129&8.6265567493E-06&5.2999673631E-05&2.0007806511E+00&1.9995909395E+00\\
 257&2.1563270218E-06&1.3250771391E-05&2.0002088399E+00&1.9999071274E+00\\
 513&5.3904358276E-07&3.3126849659E-06&2.0001021617E+00&2.0000034326E+00\\
\bottomrule
\end{tabular}
%\label{tab:addlabel}
\end{table}
