er.toDate}"
                                               
                                                    
                                               />
                            </p:commandButton>      
                        </h:panelGrid>
                    </f:facet>
                    <p:dataTable id="tbl" value="#{investigationMonthSummeryOwnController.investigationCountWithMachines}" var="c" >
                        <f:facet name="header">
                            <h:outputLabel va