Edit in JSFiddle

var team = ['AEK','ΑΕΛ','Άρης','Ηρακλής','Καβάλα','Ξάνθη','Ολυμπιακός','Ολυμπιακός Βόλου','ΟΦΗ','Παναθηναϊκός','Παναχαϊκή','Πανιώνιος','Πανσερραϊκός','ΠΑΟΚ','ΠΑΣ Γιάννινα'];
var teamID = ['110422719032276','129322810472059','182829608421864','191854030839850','192175080800352','181027218599039','183240675048778','125232120881172','129530083783672','191079300915951','200197516661018','200115743337888','186044068102385','181760921860775','171120749600813','200197516661018'];
var totalVotes = 0;
    for(var i=0; i<15; i++) {
           retrieveData(team[i],teamID[i]);
    }

function retrieveData(teamName,id) {
    var baseURL = 'http://graph.facebook.com/';
    $.getJSON(baseURL+id+"&callback=?", function(data) {
        $('#teamList tbody').append('<tr id="'+id+'"><td>' + teamName+"</td><td>"+data.likes + '</td></tr>');
        totalVotes+=data.likes;
        if($('table tr').size() == 16) { 
        $('#total').append('<tr"><td>Σύνολο</td><td>'+totalVotes+'</td></tr>');
        $('#total').width($('#teamList').width());
        $('#teamList').tablesorter(); 
    } 
    });
};

<table id="teamList" class="tablesorter">
  <thead>
    <tr>
      <th>Ομάδα</th>
      <th>Ψήφοι</th>
    </tr>
  </thead>
  <tbody></tbody>
</table>
<table id="total">
</table>

td {border: 1px black solid;}