Index: components/grid.inc
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/webform/components/grid.inc,v
retrieving revision 1.22
diff -u -p -r1.22 grid.inc
--- components/grid.inc	16 May 2010 23:24:32 -0000	1.22
+++ components/grid.inc	2 Jun 2010 10:04:00 -0000
@@ -277,6 +277,8 @@ function _webform_analysis_grid($compone
     ->groupBy('no')
     ->groupBy('data');
 
+  $query->addExpression('COUNT(sid)', 'datacount');
+
   if (count($sids)) {
     $query->condition('sid', $sids, 'IN');
   }