}
            end();
            end();
        }

        protected int getColumnsForSamples() {
            return 2;
        }

        protected void renderHeaderForSamples(String label) {
            th().colspan(String.valueOf(getColumnsForSamples())).text(label).end();
        }

            table().classAttr("history");
            tr().classAttr("control-groups");
            th().colspan("3").end();
            final String colspanForField = String.valueOf(testHistory.getScenarioCount() * getColumnsForSamples());
            th().colspan(colspanForField).text("Average build time").end();
            th().colspan("8").text("Details").end();
            end();
            tr();
            th().text("Date").end();