diff --git a/.idea/runConfigurations/go_build_requirements_manager_and_run_requirement_report.xml b/.idea/runConfigurations/go_build_requirements_manager_and_run_requirement_report.xml
index 12237c50e944fcb9f46e38ba5f26fd2ee27eb7db..0c93a80faa3fd57cd2802669069679b17ae88f9c 100644
--- a/.idea/runConfigurations/go_build_requirements_manager_and_run_requirement_report.xml
+++ b/.idea/runConfigurations/go_build_requirements_manager_and_run_requirement_report.xml
@@ -2,7 +2,7 @@
   <configuration default="false" name="go build requirements-manager and run requirement report" type="GoApplicationRunConfiguration" factoryName="Go Application">
     <module name="requirements-manager" />
     <working_directory value="$PROJECT_DIR$/application/source" />
-    <parameters value="requirements report --grouped-by ID -p $PROJECT_DIR$/development/examples/example1" />
+    <parameters value="requirements report --grouped-by Estimation -p $PROJECT_DIR$/development/examples/example1" />
     <kind value="DIRECTORY" />
     <package value="gitlab.schukai.com/oss/utilities/requirements-manager" />
     <directory value="$PROJECT_DIR$/application/source" />
diff --git a/application/source/requirements.go b/application/source/requirements.go
index 676e6eeab9f2141c95eb7cc6f9f5a42a2413a65b..2119b00096102b0c8545cad367bbd7b1d0a1f455 100644
--- a/application/source/requirements.go
+++ b/application/source/requirements.go
@@ -169,8 +169,8 @@ func buildTimeReport(config *Configuration, arguments *commandLineOptions, pageM
 	hasReport := false
 
 	found := false
-	for t, p := range pageMap {
-		fmt.Println(t, p)
+	for _, p := range pageMap {
+
 		fields := reflect.VisibleFields(reflect.TypeOf(p))
 		for _, field := range fields {
 			if field.Name == groupedByKey {
@@ -202,7 +202,22 @@ func buildTable1(groupedByKey string, pageMap map[string]requirement) string {
 	for _, d := range pageMap {
 
 		r := reflect.ValueOf(d)
-		k := r.FieldByName(groupedByKey).String()
+		f := r.FieldByName(groupedByKey)
+		k := ""
+		switch f.Interface().(type) {
+		case bool:
+			k = strconv.FormatBool(r.FieldByName(groupedByKey).Bool())
+		case int:
+			k = strconv.FormatInt(r.FieldByName(groupedByKey).Int(), 10)
+		case int64:
+			k = strconv.FormatInt(r.FieldByName(groupedByKey).Int(), 10)
+		case float64:
+			k = strconv.FormatFloat(r.FieldByName(groupedByKey).Float(), 'f', 10, 2)
+		case string:
+			k = r.FieldByName(groupedByKey).String()
+		default:
+			k = r.FieldByName(groupedByKey).String()
+		}
 
 		s := float64(d.TimeSpent.Milliseconds()) / 1000
 
@@ -338,10 +353,7 @@ func buildTable2(pageMap map[string]requirement) string {
 
 	for e, c := range est {
 
-		fmt.Println(e, c)
-
 		row := []string{}
-
 		row = append(row, fmt.Sprintf("%d", e))
 		row = append(row, time.Duration(c.time.sum*float64(time.Second)).String())
 		row = append(row, fmt.Sprintf("%.2f", c.time.average))
@@ -368,8 +380,10 @@ func printRequirementReport(config *Configuration, arguments *commandLineOptions
 
 	err, table1, table2, _ := buildTimeReport(config, arguments, pageData)
 
-	report := ""
+	report := "## " + printer.Sprintf("Auflistung") + "\n\n"
 	report += table1
+	report += "\n"
+	report += "## " + printer.Sprintf("Statistics") + "\n\n"
 	report += table2
 
 	fmt.Println(report)
diff --git a/development/examples/example1/req1/1/test1.md b/development/examples/example1/req1/1/test1.md
index d670d1924c8e015f9afb34ad22500ede243ba2cd..294156a55f608d5a003dda927e756b55068ac23a 100644
--- a/development/examples/example1/req1/1/test1.md
+++ b/development/examples/example1/req1/1/test1.md
@@ -1,6 +1,6 @@
 
 ---
-ID: ID1
+ID: ID1-1
 Title: null
 
 # Reference to other requirements
diff --git a/development/examples/example1/req1/1/test2.md b/development/examples/example1/req1/1/test2.md
index c0a035fbc62baa1e45e7a494a8b981762838de78..3b40198dff81eea31b7aaae1bcd96220629ca596 100644
--- a/development/examples/example1/req1/1/test2.md
+++ b/development/examples/example1/req1/1/test2.md
@@ -1,6 +1,6 @@
 
 ---
-ID: ID2
+ID: ID1-2
 Title: null
 
 # Reference to other requirements
diff --git a/development/examples/example1/req1/1/test3.md b/development/examples/example1/req1/1/test3.md
index a673b2d0ff39f04ae8a015dc11f8f8ade09632fe..5cf0860638774acd00b1d353334e77cb79deea29 100644
--- a/development/examples/example1/req1/1/test3.md
+++ b/development/examples/example1/req1/1/test3.md
@@ -1,6 +1,6 @@
 
 ---
-ID: ID3
+ID: ID1-3
 Title: null
 
 # Reference to other requirements
diff --git a/development/examples/example1/req1/1/test4.md b/development/examples/example1/req1/1/test4.md
index b32c64e50af740a0dfe5b59d13c0ae4819fe76f5..d206d5aecaf4ae17888b64620cbb1ea0ad6fcd85 100644
--- a/development/examples/example1/req1/1/test4.md
+++ b/development/examples/example1/req1/1/test4.md
@@ -1,6 +1,6 @@
 
 ---
-ID: ID4
+ID: ID1-4
 Title: null
 
 # Reference to other requirements
diff --git a/development/examples/example1/req1/2/test1.md b/development/examples/example1/req1/2/test1.md
index 70d7973869c345a72cb460881be4d93d96eaeaa2..a0a38f687dd1ace0220220e7aa63bd1cfa9e48ef 100644
--- a/development/examples/example1/req1/2/test1.md
+++ b/development/examples/example1/req1/2/test1.md
@@ -1,6 +1,6 @@
 
 ---
-ID: ID5
+ID: ID1-5
 Title: null
 
 # Reference to other requirements
diff --git a/development/examples/example1/req1/2/test2.md b/development/examples/example1/req1/2/test2.md
index 142b5097e9f8acd3d775b8daf90739aef8311148..bc5ae9494404884a9888a8f2c81b6f63431a0bf8 100644
--- a/development/examples/example1/req1/2/test2.md
+++ b/development/examples/example1/req1/2/test2.md
@@ -1,6 +1,6 @@
 
 ---
-ID: ID6
+ID: ID1-6
 Title: null
 
 # Reference to other requirements
diff --git a/development/examples/example1/req1/2/test3.md b/development/examples/example1/req1/2/test3.md
index 925b9051517eb789bcaa95ed45bd4c9cace4038b..5daaf15aee13b77b53f93e3c6f6abd588c176f5d 100644
--- a/development/examples/example1/req1/2/test3.md
+++ b/development/examples/example1/req1/2/test3.md
@@ -1,6 +1,6 @@
 
 ---
-ID: ID7
+ID: ID1-7
 Title: null
 
 # Reference to other requirements
diff --git a/development/examples/example1/req1/2/test4.md b/development/examples/example1/req1/2/test4.md
index 07c24ef357a1da3a5cf4a5d066fb6c42c01d3128..5f04a179d64eb7cd83cef9619b76c2e25c003165 100644
--- a/development/examples/example1/req1/2/test4.md
+++ b/development/examples/example1/req1/2/test4.md
@@ -1,6 +1,6 @@
 
 ---
-ID: ID8
+ID: ID1-8
 Title: null
 
 # Reference to other requirements
diff --git a/development/examples/example1/req1/2/test5.md b/development/examples/example1/req1/2/test5.md
index eec78079da474e7813b25bf9f793f8e28a6cdb9b..52152251880d040e0c7e06b75ba131b69f46917c 100644
--- a/development/examples/example1/req1/2/test5.md
+++ b/development/examples/example1/req1/2/test5.md
@@ -1,6 +1,6 @@
 
 ---
-ID: ID9
+ID: ID1-9
 Title: null
 
 # Reference to other requirements
diff --git a/development/examples/example1/req1/2/test6.md b/development/examples/example1/req1/2/test6.md
index 9863dcbd069b40dbed2d65c50dcebaf085fb5cf9..56222a8bd331e8dfe5c9adf256a6868b495a7fbe 100644
--- a/development/examples/example1/req1/2/test6.md
+++ b/development/examples/example1/req1/2/test6.md
@@ -1,6 +1,6 @@
 
 ---
-ID: ID10
+ID: ID1-10
 Title: null
 
 # Reference to other requirements
diff --git a/development/examples/example1/req1/3/test1.md b/development/examples/example1/req1/3/test1.md
index 8b6107730dd0b3d677de961212305ec93cb88473..d55bd996df78c879ad40d14f1ccb4bdb99c31db7 100644
--- a/development/examples/example1/req1/3/test1.md
+++ b/development/examples/example1/req1/3/test1.md
@@ -1,6 +1,6 @@
 
 ---
-ID: ID11
+ID: ID1-11
 Title: null
 
 # Reference to other requirements
diff --git a/development/examples/example1/req1/3/test2.md b/development/examples/example1/req1/3/test2.md
index 84b1909c49a1656a80948c6aefba8a5b12089222..94766fea47525a2a3cb5262653a267e71a1d5ad8 100644
--- a/development/examples/example1/req1/3/test2.md
+++ b/development/examples/example1/req1/3/test2.md
@@ -1,6 +1,6 @@
 
 ---
-ID: ID12
+ID: ID1-12
 Title: null
 
 # Reference to other requirements
diff --git a/development/examples/example1/req1/3/test3.md b/development/examples/example1/req1/3/test3.md
index a61da67c991844b4521e621887398dfbf7fb0235..efdc5398c4d9679fcb5a789c5fa16205b52f63a1 100644
--- a/development/examples/example1/req1/3/test3.md
+++ b/development/examples/example1/req1/3/test3.md
@@ -1,6 +1,6 @@
 
 ---
-ID: ID13
+ID: ID1-13
 Title: null
 
 # Reference to other requirements
diff --git a/development/examples/example1/req1/3/test4.md b/development/examples/example1/req1/3/test4.md
index 3f80e07dc85b3e6c5e2161c48a7686cfbf77d759..2e22e63039072e21fe9348da91c84ed63f03d230 100644
--- a/development/examples/example1/req1/3/test4.md
+++ b/development/examples/example1/req1/3/test4.md
@@ -1,6 +1,6 @@
 
 ---
-ID: ID14
+ID: ID1-14
 Title: null
 
 # Reference to other requirements
diff --git a/development/examples/example1/req1/3/test5.md b/development/examples/example1/req1/3/test5.md
index 95d1c1b5a5ccad821d38e23a71f8a0e229f31a69..3e49e985deceae4d32bdd026cb872b2f66b1d6c4 100644
--- a/development/examples/example1/req1/3/test5.md
+++ b/development/examples/example1/req1/3/test5.md
@@ -1,6 +1,6 @@
 
 ---
-ID: ID15
+ID: ID1-15
 Title: null
 
 # Reference to other requirements
diff --git a/development/examples/example1/req1/3/test6.md b/development/examples/example1/req1/3/test6.md
index 96cc07f2f235104ec6eabe7f086059f4d811429f..7e1af1d2df12b97855ef576ff234d6ad24db55f7 100644
--- a/development/examples/example1/req1/3/test6.md
+++ b/development/examples/example1/req1/3/test6.md
@@ -1,6 +1,6 @@
 
 ---
-ID: ID16
+ID: ID1-16
 Title: null
 
 # Reference to other requirements
diff --git a/development/examples/example1/req1/3/test7.md b/development/examples/example1/req1/3/test7.md
index e01062bcbde95268f3c7238768b9c88a70ed3851..765583a711778d40488acd7df476511591fb2906 100644
--- a/development/examples/example1/req1/3/test7.md
+++ b/development/examples/example1/req1/3/test7.md
@@ -1,6 +1,6 @@
 
 ---
-ID: ID17
+ID: ID1-17
 Title: null
 
 # Reference to other requirements
diff --git a/development/examples/example1/req1/4/test1.md b/development/examples/example1/req1/4/test1.md
index d31bfbe45dffb13d4ead37767d4009107d0629d4..ac1cabb3f33fadc81c923a12f3b81875fda58539 100644
--- a/development/examples/example1/req1/4/test1.md
+++ b/development/examples/example1/req1/4/test1.md
@@ -1,6 +1,6 @@
 
 ---
-ID: ID18
+ID: ID1-18
 Title: null
 
 # Reference to other requirements
diff --git a/development/examples/example1/req1/4/test2.md b/development/examples/example1/req1/4/test2.md
index 1ac192bf7eded8f783a219ffaa103e371fd28771..209372df7cd6e47817b2a0936cb23839248d472d 100644
--- a/development/examples/example1/req1/4/test2.md
+++ b/development/examples/example1/req1/4/test2.md
@@ -1,6 +1,6 @@
 
 ---
-ID: ID19
+ID: ID1-19
 Title: null
 
 # Reference to other requirements
diff --git a/development/examples/example1/req1/4/test3.md b/development/examples/example1/req1/4/test3.md
index 519a2635a1c776812b593eb62deca9f50c6f6cbd..5151ddee6a3e2d436beda503da57df1a5e9678e0 100644
--- a/development/examples/example1/req1/4/test3.md
+++ b/development/examples/example1/req1/4/test3.md
@@ -1,6 +1,6 @@
 
 ---
-ID: ID20
+ID: ID1-20
 Title: null
 
 # Reference to other requirements
diff --git a/development/examples/example1/req1/4/test4.md b/development/examples/example1/req1/4/test4.md
index 440d92bed4b0947efd0cc64052e3c67441bbf7f6..11045bb61fc3a523e36129a6ab76f1a015991758 100644
--- a/development/examples/example1/req1/4/test4.md
+++ b/development/examples/example1/req1/4/test4.md
@@ -1,6 +1,6 @@
 
 ---
-ID: ID21
+ID: ID1-21
 Title: null
 
 # Reference to other requirements
diff --git a/development/examples/example1/req1/5/test1.md b/development/examples/example1/req1/5/test1.md
index ee46ba38288b30b9e24190dac0e49d0ca676c01d..3dc845fa2c6050970bfec1743a2078d29c240e1b 100644
--- a/development/examples/example1/req1/5/test1.md
+++ b/development/examples/example1/req1/5/test1.md
@@ -1,6 +1,6 @@
 
 ---
-ID: ID22
+ID: ID1-22
 Title: null
 
 # Reference to other requirements
diff --git a/development/examples/example1/req1/5/test2.md b/development/examples/example1/req1/5/test2.md
index 8260ba76b65eb3af416e0a209fb68efd52c6eb01..c31f84c5a99b8c73543d1984afd581f3a941c576 100644
--- a/development/examples/example1/req1/5/test2.md
+++ b/development/examples/example1/req1/5/test2.md
@@ -1,6 +1,6 @@
 
 ---
-ID: ID23
+ID: ID1-23
 Title: null
 
 # Reference to other requirements
diff --git a/development/examples/example1/req1/6/test1.md b/development/examples/example1/req1/6/test1.md
index d95706cbdd5bf6735bd9d855b2dc1957c7cd488c..1c24095f1abf0c6d015b214886158f97abbed0b4 100644
--- a/development/examples/example1/req1/6/test1.md
+++ b/development/examples/example1/req1/6/test1.md
@@ -1,6 +1,6 @@
 
 ---
-ID: ID24
+ID: ID1-24
 Title: null
 
 # Reference to other requirements
diff --git a/development/examples/example1/req1/6/test2.md b/development/examples/example1/req1/6/test2.md
index 8dac327d1ba744c0d0adc40ab6936d81a340412c..071b74c03ed0d6b32dc7d505d5e48dcb236ee258 100644
--- a/development/examples/example1/req1/6/test2.md
+++ b/development/examples/example1/req1/6/test2.md
@@ -1,6 +1,6 @@
 
 ---
-ID: ID25
+ID: ID1-25
 Title: null
 
 # Reference to other requirements