Index: lams_tool_survey/src/java/org/lamsfoundation/lams/tool/survey/dao/hibernate/SurveyUserDAOHibernate.java
===================================================================
RCS file: /usr/local/cvsroot/lams_tool_survey/src/java/org/lamsfoundation/lams/tool/survey/dao/hibernate/SurveyUserDAOHibernate.java,v
diff -u -r1.2.14.6 -r1.2.14.7
--- lams_tool_survey/src/java/org/lamsfoundation/lams/tool/survey/dao/hibernate/SurveyUserDAOHibernate.java	11 May 2016 07:37:31 -0000	1.2.14.6
+++ lams_tool_survey/src/java/org/lamsfoundation/lams/tool/survey/dao/hibernate/SurveyUserDAOHibernate.java	27 Mar 2017 11:55:42 -0000	1.2.14.7
@@ -205,7 +205,7 @@
     private static final String GET_STATISTICS = "SELECT session.*, COUNT(*) numUsers "
 	    + "  FROM tl_lasurv11_session session, tl_lasurv11_survey survey, tl_lasurv11_user user "
 	    + "  WHERE survey.content_id = :contentId and session.survey_uid = survey.uid  and user.session_uid = session.uid "
-	    + "  GROUP BY session.session_id";
+	    + "  GROUP BY session.uid";
 
     @Override
     @SuppressWarnings("unchecked")