ติดปัญหาการเพิ่มข้อมูลหลายๆแถวมันบันทึกข้อมูลซ้ำค่ะ

<form action="2.php" method="post" name="form1" target="_blank" id="form1">
<?
$link = mysql_connect("localhost", "root", "password");
mysql_select_db("reference_database", $link);

$result = mysql_query("SELECT * FROM university", $link);
$num_rows = mysql_num_rows($result);
//echo "$num_rows Rows\n";
$Line=$num_rows;
?> 
<form id="formRegister" name="formRegister" method="post" action="Company_add_save.php" enctype="multipart/form-data">
<p>บริษัท ||
  <select name="Com_ID" id="Com_ID">
    <option value="">เลือกบริษัท</option>
    <?php
    $sql="select * from company ";
    $a=mysql_query($sql);
    while($objResult=mysql_fetch_array($a)){
?>
  <option value="<?=$objResult['Com_ID']?>"><?= $objResult['Com_name']?></option>
<?php } ?>    
  </select></p>
<br/> 
<p>ฐานข้อมูล Reference Database ||
  <select name="Rf_ID" id="Rf_ID">
    <option value="">เลือกฐานข้อมูล Reference Database ที่ต้องการ</option>
    <?php
    $sql="select * from reference_data ";
    $a=mysql_query($sql);
    while($objResult=mysql_fetch_array($a)){
?>
  <option value="<?=$objResult['Rf_ID']?>"><?=$objResult['Rf_name']?></option>
<?php } ?>    
  </select></p>
<br/>   
แนบไฟล์เอกสาร || 
  <input name="file_name" type="file" id="file_name" />
<br/><br/><br/>

<?
$strSQL = "SELECT * FROM university";
		  
$objQuery = mysql_query($strSQL) or die ("Error Query [".$strSQL."]");
?>
<table bgcolor="#EDEDED" border="1" cellspacing="0" cellpadding="2" style="border-collapse:collapse; font-weight: bold;">
  
    <tr>
      <td  rowspan="3" bgcolor="#f79e45" style="text-align: center">ชื่อมหาวิทยาลัย</td>
      <tr>
      <td colspan="5" bgcolor="#f79e45" style="text-align: center">เดือน :
      <label for="Month"></label>
      <select name="Month" id="Month">
    <option value="">เลือกเดือนที่ต้องการ</option>
    <option value="January">January</option>
    <option value="February">February</option>
    <option value="March">March</option>
    <option value="April">April</option>
    <option value="May">May</option>    
    <option value="June">June</option>
    <option value="July">July</option>
    <option value="August">August</option>
    <option value="September">September</option>
    <option value="October">October</option>
    <option value="November">November</option>
    <option value="December">December</option>
  </select>&nbsp;
  ปี :
  <label for="Years"></label>
      <select name="Years" id="Years">
    <option value="">เลือกเดือนที่ต้องการ</option>
    <option value="2015">2015</option>
    <option value="2016">2016</option>
    <option value="2017">2017</option>
    <option value="2018">2018</option>
    <option value="2019">2019</option>
    <option value="2020">2020</option>
   </select>
    </tr>
    <tr>
      <td  bgcolor="#f79e45" style="text-align: center">Searches</td>
      <td  bgcolor="#f79e45" style="text-align: center"><p>Full_Text</p>
        <p>Requests</p></td>
      <td  bgcolor="#f79e45" style="text-align: center"><p>Sub</p>
        <p>sessions</p></td>
      <td  bgcolor="#f79e45" style="text-align: center">Queries</td>
      <td  bgcolor="#f79e45" style="text-align: center"><p>Citation</p>
        <p>Events</p></td>
    </tr>
<?php
while($objResult = mysql_fetch_array($objQuery))
{
?>
  <tr>
 	<td><input type="text" name="Univer_name" readonly="1"  value="<?=$objResult['Univer_name']?>" size="60"><input name="Univer_ID" type="hidden" value="<?=$objResult['Univer_ID']?>" /></td>
   
    <td><input type="text" name="Searches[]" id="Searches"  size="10"></td>
    <td><input type="text" name="Full_Text_Requests[]" id="Full_Text_Requests" size="10"></td>
    <td><input type="text" name="Sub_sessions[]" id="Sub_sessions" size="10"></div></td>
    <td><input type="text" name="Queries[]" id="Queries" size="10"></td>
    <td><input type="text" name="Citation_Events[]" id="Citation_Events" size="10"></td>
  </tr>
  <?php
  }
  ?>
</table>
<? echo $msg ;?>
<br/>
  <div align="center"><input type="submit" name="submit" value="บันทึก">
  
  </div>
  
  </form>

 <?php
include('connect.php');

// print array ออกมาดู
print_r($_POST);

	$Last_update	 	    = date("Y-m-d H:i");
	$file_ID				= $_REQUEST["file_ID"];
	$file_name				= '".$_FILES["file_name"]["name"]."';
	
	
if (isset($_POST['submit'])) {  
       
    $i = 0;
    foreach ($_POST['Searches'] as $val) {  
                $Searches  	            = $val;
                $Full_Text_Requests   = $_POST['Full_Text_Requests'][$i];
		$Sub_sessions	    = $_POST['Sub_sessions'][$i];
		$Queries			    = $_POST['Queries'][$i];
		$Citation_Events	    = $_POST['Citation_Events'][$i];
		
        mysql_query("INSERT INTO stat(Univer_ID,Rf_ID,
			Com_ID,Searches,Full_Text_Requests,Sub_sessions,Queries,
			Citation_Events,Month,Years,Last_update,file_name)  
			  		
	VALUES('$Univer_ID','$Rf_ID','$Com_ID',
	   '$Searches','$Full_Text_Requests','$Sub_sessions',
	   '$Queries','$Citation_Events','$Month','$Years',
	   '$Last_update','".$_FILES["file_name"]["name"]."')");
    $i++;
    } 
 }  
 echo  mysql_query;
 ?>