diff --git a/src/main/java/org/olat/modules/coach/ui/CoursesTableDataModel.java b/src/main/java/org/olat/modules/coach/ui/CoursesTableDataModel.java
index 4c0e3093aabd41f85155667b6a247c83b65f11a5..93cd51221c65947f5f2f1bc8d6093d0f9571f09a 100644
--- a/src/main/java/org/olat/modules/coach/ui/CoursesTableDataModel.java
+++ b/src/main/java/org/olat/modules/coach/ui/CoursesTableDataModel.java
@@ -68,7 +68,7 @@ public class CoursesTableDataModel implements TableDataModel<CourseStatEntry> {
 			case initialLaunch: {
 				int count = c.getCountStudents();
 				if(count == 0) {
-					return new LightedValue("", Light.grey);
+					return new LightedValue(null, Light.grey);
 				}
 
 				int launch = c.getInitialLaunch();
@@ -78,7 +78,7 @@ public class CoursesTableDataModel implements TableDataModel<CourseStatEntry> {
 				} else if (launch == 0) {
 					light = Light.red;
 				}
-				return new LightedValue(Integer.toString(launch), light);
+				return new LightedValue(launch, light);
 			}
 			case countPassed: {
 				int numOfStudents = c.getCountStudents();
@@ -94,7 +94,7 @@ public class CoursesTableDataModel implements TableDataModel<CourseStatEntry> {
 			case countPassedLight: {
 				int count = c.getCountStudents();
 				if(count == 0) {
-					return new LightedValue("", Light.grey);
+					return new LightedValue(null, Light.grey);
 				}
 				
 				int passed = c.getCountPassed();
@@ -104,7 +104,7 @@ public class CoursesTableDataModel implements TableDataModel<CourseStatEntry> {
 				} else if (passed == 0) {
 					light = Light.red;
 				}
-				return new LightedValue(Integer.toString(c.getCountPassed()), light);
+				return new LightedValue(c.getCountPassed(), light);
 			}
 			case averageScore: return c.getAverageScore();
 		}
diff --git a/src/main/java/org/olat/modules/coach/ui/GroupsTableDataModel.java b/src/main/java/org/olat/modules/coach/ui/GroupsTableDataModel.java
index 387cc67de9317320d365f5c4d4ab7721316a9eb4..9856d658e602c56d75a839f31f07fa1ac9c4876b 100644
--- a/src/main/java/org/olat/modules/coach/ui/GroupsTableDataModel.java
+++ b/src/main/java/org/olat/modules/coach/ui/GroupsTableDataModel.java
@@ -72,7 +72,7 @@ public class GroupsTableDataModel implements TableDataModel<GroupStatEntry> {
 			case initialLaunch: {
 				int count = g.getCountCourses() * g.getCountStudents();
 				if(count == 0) {
-					return new LightedValue("", Light.grey);
+					return new LightedValue(null, Light.grey);
 				}
 
 				int launch = g.getInitialLaunch();
@@ -82,11 +82,11 @@ public class GroupsTableDataModel implements TableDataModel<GroupStatEntry> {
 				} else if (launch == 0) {
 					light = Light.red;
 				}
-				return new LightedValue(Integer.toString(launch), light);
+				return new LightedValue(launch, light);
 			}
 			case countPassed: {
 				if(numOfStudents == 0) {
-					return new LightedValue("", Light.grey);
+					return numOfStudents;
 				}
 				
 				ProgressValue val = new ProgressValue();
@@ -96,7 +96,7 @@ public class GroupsTableDataModel implements TableDataModel<GroupStatEntry> {
 			}
 			case countPassedLight: {
 				if(numOfStudents == 0) {
-					return new LightedValue("", Light.grey);
+					return new LightedValue(null, Light.grey);
 				}
 				
 				int passed = g.getCountPassed();
@@ -106,7 +106,7 @@ public class GroupsTableDataModel implements TableDataModel<GroupStatEntry> {
 				} else if (passed == 0) {
 					light = Light.red;
 				}
-				return new LightedValue(Integer.toString(passed), light);
+				return new LightedValue(passed, light);
 			}
 			case averageScore: return g.getAverageScore();
 			case statistics: {
diff --git a/src/main/java/org/olat/modules/coach/ui/LightedValue.java b/src/main/java/org/olat/modules/coach/ui/LightedValue.java
index 659ebf578d1bd2b64cbc7ce3e013654a1ac156cb..10c62ae15c5c2561e189878fd317f17fdc22a3fd 100644
--- a/src/main/java/org/olat/modules/coach/ui/LightedValue.java
+++ b/src/main/java/org/olat/modules/coach/ui/LightedValue.java
@@ -23,23 +23,43 @@ package org.olat.modules.coach.ui;
  * 
  * @author srosse, stephane.rosse@frentix.com, http://www.frentix.com
  */
-public class LightedValue {
+public class LightedValue implements Comparable<LightedValue> {
 	
-	private final String value;
+	private final Integer value;
 	private final Light light;
 	
-	public LightedValue(String value, Light light) {
+	public LightedValue(Integer value, Light light) {
 		this.value = value;
 		this.light = light;
 	}
 
 	public String getValue() {
-		return value;
+		return value == null ? "" : Integer.toString(value.intValue());
 	}
 
 	public Light getLight() {
 		return light;
 	}
+	
+	@Override
+	public int compareTo(LightedValue o) {
+		int color1 = light == null ? 0 : light.ordinal();
+		int color2 = o.light == null ? 0 : o.light.ordinal();
+		if(color1 < color2) {
+			return -1;
+		} else if(color2 < color1) {
+			return 1;
+		}
+		
+		int val1 = value == null ? 0 : value.intValue();
+		int val2 = o.value == null ? 0 : o.value.intValue();
+		if(val2 < val1) {
+			return -1;
+		} else if(val1 < val2) {
+			return 1;
+		}
+		return 0;
+	}
 
 	public enum Light {
 		grey,
diff --git a/src/main/java/org/olat/modules/coach/ui/StudentsTableDataModel.java b/src/main/java/org/olat/modules/coach/ui/StudentsTableDataModel.java
index 8e38e2f06446604a027c661c717c6d98e7741fde..4a4b5c9b24e044a8e27b5b0463f603300598586d 100644
--- a/src/main/java/org/olat/modules/coach/ui/StudentsTableDataModel.java
+++ b/src/main/java/org/olat/modules/coach/ui/StudentsTableDataModel.java
@@ -84,7 +84,7 @@ public class StudentsTableDataModel implements TableDataModel<StudentStatEntry>
 				} else if (launched == 0) {
 					light = Light.red;
 				}
-				return new LightedValue(Integer.toString(launched), light);
+				return new LightedValue(launched, light);
 			}
 			case countPassed: {
 				if(countRepo == 0) {
@@ -107,7 +107,7 @@ public class StudentsTableDataModel implements TableDataModel<StudentStatEntry>
 				} else if (passed == 0) {
 					light = Light.red;
 				}
-				return new LightedValue(Integer.toString(passed), light);
+				return new LightedValue(passed, light);
 			}
 		}
 		return null;