计算mysql中的数字 - codeigniter

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How to find the number of occurances of open_id_fk in this table. I am using the below code in my model.

 $this->db->select('open_id_fk, COUNT(open_id_fk) as total');
 $this->db->group_by('open_id_fk'); 
 $this->db->order_by('total', 'desc'); 
 $query = $this->db->get('voting_ip', 10);
 return $query;

I am not getting proper output. the output is:

116 6
118 3
119 2

HTML

 <div id="openletter" style="color:black;font-family:'Lato',sans-serif;"> <br>
 <?php echo "<br><br>".$row->open_id_fk;?><?php echo $row->total; ?>