Edit in JSFiddle

<table>
  <thead>
    <tr>
      <th></th>
      <th colspan="3">Questionnaire</th>
      <th></th>
    </tr>
    <tr>
      <th>Survey</th>
      <th>Type <sup><a href="#note">1</a></sup></th>
      <th>Image</th>
      <th>Text</th>
      <th>Report</th>
    </tr>
  </thead>
  <tr>
    <th colspan="5">Benin</th>
  </tr><tr>
  <td rowspan="2">Benin 1996</td>
  <td>Females</td>
  <td><a href="/idhs/resources/survey_forms_pdf/survey_form_bj1996_fem.pdf">pdf</a></td>
  <td><a href="/idhs-action/source_documents/survey_form_bj1996_fem_tag.xml">html</a></td>
  <td rowspan="2"><a href="https://www.dhsprogram.com/pubs/pdf/FR81/FR81.pdf">Report</a></td>
  </tr><tr>
  <td>Household</td>
  <td><a href="/idhs/resources/survey_forms_pdf/survey_form_bj1996_hh.pdf">pdf</a></td>
  <td><a href="/idhs-action/source_documents/survey_form_bj1996_hh_tag.xml">html</a></td>
  </tr><tr>
  <td rowspan="2">Benin 2001</td>
  <td>Females</td>
  <td><a href="/idhs/resources/survey_forms_pdf/survey_form_bj2001_fem.pdf">pdf</a></td>
  <td><a href="/idhs-action/source_documents/survey_form_bj2001_fem_tag.xml">html</a></td>
  <td rowspan="2"><a href="https://www.dhsprogram.com/pubs/pdf/FR133/FR133.pdf">Report</a></td>
  </tr><tr>
  <td>Household</td>
  <td><a href="/idhs/resources/survey_forms_pdf/survey_form_bj2001_hh.pdf">pdf</a></td>
  <td><a href="/idhs-action/source_documents/survey_form_bj2001_hh_tag.xml">html</a></td>
  </tr><tr>
  <td rowspan="2">Benin 2006</td>
  <td>Females</td>
  <td><a href="/idhs/resources/survey_forms_pdf/survey_form_bj2006_fem.pdf">pdf</a></td>
  <td><a href="/idhs-action/source_documents/survey_form_bj2006_fem_tag.xml">html</a></td>
  <td rowspan="2"><a href="https://www.dhsprogram.com/pubs/pdf/FR197/FR197.pdf">Report</a></td>
  </tr><tr>
  <td>Household</td>
  <td><a href="/idhs/resources/survey_forms_pdf/survey_form_bj2006_hh.pdf">pdf</a></td>
  <td><a href="/idhs-action/source_documents/survey_form_bj2006_hh_tag.xml">html</a></td>
  </tr>
</table>