Input ngModel in *ngFor binds to same value for all inputs

<tbody>
    <tr *ngFor="let trxList of trxNumberList; let i= index">
        <td>{{i}}</td>
        <td>
            <input type="text" name="trxNumber-{{i}}" class="form-control" minlength="1" maxlength="20" [(ngModel)]="trxList.trxNumber" />
        </td>
    </tr>
</tbody>

This is my table body, When I key in first input box, all the other inputs are binding to this value. Image attached. Please help.

EDIT:

Component code:

trxNumberObj = new Transaction;

ngOnInit() { 
  for(var i= 0 ; i <= 10; i++ ){ 
    this.trxNumberObj.count = i; 
    this.trxNumberList.push(this.trxNumberObj); 
  } 
}