我需要限制Visualforce页面中单列单元格值的重复值

如何解决我需要限制Visualforce页面中单列单元格值的重复值

**我已创建控制器和vf页面以显示3列（对象，附件总数，ContentTypecount），其中附件计数列的值针对每种内容类型计数重复，因此我想隐藏或限制附件计数中的重复项列，并且每个对象仅显示一次**

  my controller code:
public Map<String,integer>  mapofObject {set;get;}
    public MyController(){
        mapofObject = new Map<String,integer>();
        for(AggregateResult at:[select Parent.Type b,count(id) from Attachment group BY Parent.Type]){
            String Name = (string)(at.get('b'));
            integer a = (integer)at.get('expr0');
            mapofObject.put(Name,a);  
        } 
    }
    public AggregateResult[] results {
        get {
            return [select Parent.Type b,Count(id) c,ContentType type from Attachment group By Parent.Type,ContentType];
        }}}
  enter code here

my Visuaforce page code:
   <table border="1">
        <th>Object</th>
        <th>Total Attachments</th>
        <th>ContentType count</th>
        <th>ContentType</th>
    <apex:repeat value="{!results}" var="r">
        <tr></tr>
        <td> {!r['b']}</td>
        <td>{!mapofObject[r['b']]}</td>
        <td> {!r['c']}</td>
        <td>{!r['type']}</td>
    </apex:repeat>
    </table> 

**My OUTPUT
Object    Total Attachments ContentTypecount    
Contact              4        1 
Contact              4        2 
Contact              4        1     
Opportunity          4        2 
Opportunity          4        1 
Opportunity          4        1
Account              3        2
Account              3        1
Expected OUTPUT:
Object    TotalAttachments  ContentTypecount    
Contact           4           1 
Contact                       2 
Contact                       1     
Opportunity       4           3 
Opportunity                   1 
Opportunity                   1
Account           3           2
Account                       1  **