items="[[computeIndicators(end, days, block, headerWidth)]]">
        <div style$="left: [[item.left]]px;">
          <div>
            [[maybeShowDate(item)]]</br/>
            [[item.time]]
          </div>
        </div>
      </template>
    </div>
  </template>
  <script>
    Polymer({
      is: 'crash-stats-header',
      properties: {
          end: {
              type: Number,
              value: 0
          },
          days: {
              type: Number,
              value: 0
          },
     