como incrementar un il?

[jmdz]

Código PHP:

<table width="300px" border="1"> 
<tr> 
<th>Nºlist</th> 
<th>Nombre</th> 
<th>A.Paterno</th> 
<th>A. Materno</th> 
</tr> 
<?php   
$i=1;
$gn = mysql_query("SELECT * FROM `info` ORDER BY `apaterno`,`amaterno`,nombre ASC")  or die(mysql_error()); 
while($n = mysql_fetch_array($gn)){ 
echo "<tr align=\"center\">"; 
echo "<td>".$i."</td>"; 
echo "<td>".$n['nombre']."</td>"; 
echo "<td>".$n['apaterno']."</td>"; 
echo "<td>".$n['amaterno']."</td>"; 
$i++;
} 
?> 
</tr></table>