Index: lams_tool_daco/src/java/org/lamsfoundation/lams/tool/daco/dao/hibernate/DacoAnswerDAOHibernate.java
===================================================================
diff -u -r2f21856ec2ab85b47c93cfcc3fa2c8769be65077 -r92ac059e7b8ccd60e7a18d3f0e35e193d01617d1
--- lams_tool_daco/src/java/org/lamsfoundation/lams/tool/daco/dao/hibernate/DacoAnswerDAOHibernate.java	(.../DacoAnswerDAOHibernate.java)	(revision 2f21856ec2ab85b47c93cfcc3fa2c8769be65077)
+++ lams_tool_daco/src/java/org/lamsfoundation/lams/tool/daco/dao/hibernate/DacoAnswerDAOHibernate.java	(.../DacoAnswerDAOHibernate.java)	(revision 92ac059e7b8ccd60e7a18d3f0e35e193d01617d1)
@@ -116,11 +116,15 @@
 		answerIndex++;
 	    } while (currentSingleAnswer != null);
 	} else {
-	    int answerIndex = Integer.parseInt(singleAnswer.getAnswer()) - 1;
-	    if (isUserSummary) {
-		summary.addUserSummarySingleAnswer(answerIndex, singleAnswer);
-	    } else {
-		summary.addGroupSummarySingleAnswer(answerIndex, singleAnswer);
+	    try {
+		int answerIndex = Integer.parseInt(singleAnswer.getAnswer()) - 1;
+		if (isUserSummary) {
+		    summary.addUserSummarySingleAnswer(answerIndex, singleAnswer);
+		} else {
+		    summary.addGroupSummarySingleAnswer(answerIndex, singleAnswer);
+		}
+	    } catch (NumberFormatException e) {
+		log.debug("Found non-integer value '" + singleAnswer.getAnswer() + "' for question uid " + currentUid);
 	    }
 	}
     }