diff --git a/src/main/java/org/jenkinsci/plugins/benchmark/condensed/BooleanCondensed.java b/src/main/java/org/jenkinsci/plugins/benchmark/condensed/BooleanCondensed.java
index 821e3dd..66ee103 100644
--- a/src/main/java/org/jenkinsci/plugins/benchmark/condensed/BooleanCondensed.java
+++ b/src/main/java/org/jenkinsci/plugins/benchmark/condensed/BooleanCondensed.java
@@ -86,7 +86,7 @@ public String getHTMLCondensed(Integer key, ContentDetected detected, char decim
         content.append(key.toString());
         content.append("</td><td>");
         if (detected.isNumeralDetected()) {
-            content.append("-</td><td>-</td><td>-</td><td>-</td><td>");
+            content.append("</td><td></td><td></td><td></td><td>");
         }
         content.append(Integer.toString(this.passed));
         content.append("</td><td>");
diff --git a/src/main/java/org/jenkinsci/plugins/benchmark/condensed/StringCondensed.java b/src/main/java/org/jenkinsci/plugins/benchmark/condensed/StringCondensed.java
index 391d07c..112694c 100644
--- a/src/main/java/org/jenkinsci/plugins/benchmark/condensed/StringCondensed.java
+++ b/src/main/java/org/jenkinsci/plugins/benchmark/condensed/StringCondensed.java
@@ -88,7 +88,7 @@ public String getHTMLCondensed(Integer key, ContentDetected detected, char decim
         content.append(key.toString());
         content.append("</td><td>");
         if (detected.isNumeralDetected()) {
-            content.append("-</td><td>-</td><td>-</td><td>-</td><td>");
+            content.append("</td><td></td><td></td><td></td><td>");
         }
         content.append(Integer.toString(this.passed));
         content.append("</td><td>");
diff --git a/src/main/java/org/jenkinsci/plugins/benchmark/parsers/MapperBase.java b/src/main/java/org/jenkinsci/plugins/benchmark/parsers/MapperBase.java
index 50aa6b7..820ac99 100644
--- a/src/main/java/org/jenkinsci/plugins/benchmark/parsers/MapperBase.java
+++ b/src/main/java/org/jenkinsci/plugins/benchmark/parsers/MapperBase.java
@@ -225,7 +225,7 @@ public void mergeWith(MapperBase mapper) throws ValidationException {
                     }
                 }
                 if (!detectedParam) {
-                    results.put(baseParam.getKey(), baseParam.getValue());
+                    parameters.put(baseParam.getKey(), baseParam.getValue());
                 }
             }
             for (Map.Entry<Integer, TestGroup> baseFile : mapper.getFiles().entrySet()) {
diff --git a/src/main/java/org/jenkinsci/plugins/benchmark/results/BooleanValue.java b/src/main/java/org/jenkinsci/plugins/benchmark/results/BooleanValue.java
index 6d7d73c..e006b9a 100644
--- a/src/main/java/org/jenkinsci/plugins/benchmark/results/BooleanValue.java
+++ b/src/main/java/org/jenkinsci/plugins/benchmark/results/BooleanValue.java
@@ -157,7 +157,7 @@ public String getValueAsLocaleString(int build, char decimalSeparator) {
         if (value == null) {
             return "";
         } else {
-            return value.toString();
+            return "__boolean__";
         }
     }
 
diff --git a/src/main/java/org/jenkinsci/plugins/benchmark/results/TestValue.java b/src/main/java/org/jenkinsci/plugins/benchmark/results/TestValue.java
index 20505a9..a2d17b3 100644
--- a/src/main/java/org/jenkinsci/plugins/benchmark/results/TestValue.java
+++ b/src/main/java/org/jenkinsci/plugins/benchmark/results/TestValue.java
@@ -991,17 +991,17 @@ public String getHTMLResult(Integer key, ContentDetected detected, TreeSet<Integ
         for (int build = builds.last(); build >= builds.first(); build--) {
             String value = this.getValueAsLocaleString(build, decimalSeparator);
             if (value.isEmpty()) {
-                content.append("</td><td>-");
+                content.append("</td><td>");
             } else {
                 Boolean failedState = this.getFailedState(build);
                 if (failedState == null){
                     content.append("</td><td>");
-                    content.append(value);
+                    if (!value.equals("__boolean__")) content.append(value);
                 } else {
                     content.append("</td><td style=\"background-color:");
                     content.append(this.getColor(failedState));
-                    content.append(";\">");
-                    content.append(value);
+                    content.append("\">");
+                    if (!value.equals("__boolean__")) content.append(value);
                     if (failedState){
                         listNFailed.set(index, listNFailed.get(index) + 1);
                     } else {
diff --git a/src/main/resources/org/jenkinsci/plugins/benchmark/core/BenchmarkProjectAction/index.jelly b/src/main/resources/org/jenkinsci/plugins/benchmark/core/BenchmarkProjectAction/index.jelly
index 4e1a514..db34eae 100644
--- a/src/main/resources/org/jenkinsci/plugins/benchmark/core/BenchmarkProjectAction/index.jelly
+++ b/src/main/resources/org/jenkinsci/plugins/benchmark/core/BenchmarkProjectAction/index.jelly
@@ -253,20 +253,24 @@
         }
         .hover td:first-child {
           background-color:#ededed;
+          text-align: left;
         }
         <j:if test="${it.NumberOfHeads > 1}">
           .hover td:nth-child(2) {
             background-color:#ededed;
+            text-align: left;
           }
         </j:if>
         <j:if test="${it.NumberOfHeads > 2}">
           .hover td:nth-child(3) {
             background-color:#ededed;
+            text-align: left;
           }
         </j:if>
         <j:if test="${it.NumberOfHeads > 3}">
           .hover td:nth-child(4) {
             background-color:#ededed;
+            text-align: left;
           }
         </j:if>
         #api_link {