of variables</a>
  <ul class="collapse">
  <li><a href="#identifier-variables" id="toc-identifier-variables" class="nav-link" data-scroll-target="#identifier-variables">Identifier variables</a></li>
  <li><a href="#regions-of-england" id="toc-regions-of-england" class="nav-link" data-scroll-target="#regions-of-england">Regions of England</a></li>
  <li><a href="#settlement-funding-assessment-sfa" id="toc-settlement-funding-assessment-sfa" class="nav-link" data-scroll-target="#settlement-funding-assessment-s