Sorting on the decimal values are not working

I have created the table with the data table 1.9 but my

  sType": "formatted-num"  

is not working for me

i have created jsfiddle http://jsfiddle.net/hALDK/19/


The column Header

BRR

is not sorting.

i am using

$(document).ready( function() {
  $('#myTable').dataTable( {
    "sPaginationType": "full_numbers",
    "aoColumns": [null,null,null,null,null,null,null,null,{ "sType": "formatted-num" },null] 
  } );

} )