anchor.diff:                <th>Solar export</th>
                 <th>Floor area</th>
                 <th>Pupil numbers</th>
  +              <th>Activities completed</th>
                 <th>Interventions</th>
               </tr>
             </thead>
  
positive.code:           <h3><%= school_group.name %></h3>
          </div>
  
          <table class="table table-sorted table-bordered">
            <thead>
              <tr>
                <th colspan="3" class="text-center">School</th>
                <th colspan="4" class="text-center">Meter count on site</th>
                <th colspan="3"></th>
              </tr>
              <tr>
                <th>Name</th>
                <th>URN/SEED</th>
                <th>Postcode</th>
                <th>Gas</th>
                <th>Electricity</th>
  
negative.code:                 <td><%= school.meters.exported_solar_pv.count %></td>
                  <td><%= school.floor_area %></td>
                  <td><%= school.number_of_pupils %></td>
                  <td><%= link_to school.activities.count, school_activities_path(school) %></td>
                  <td><%= link_to school.observations.intervention.count, school_interventions_path(school) %></td>
                </tr>
              <% end %>
  