anchor.diff:          <% end %>
         </th>
         <% @ranges.each do |hash| %>
  -        <th><span class="count-rot315" rel="tooltip" title="<%= hash[:tooltip] %>"><%= hash[:name] %></span></th>
  +        <th><span class="count-rot315 <%= 'muted' if hash[:name].blank? %>" rel="tooltip" title="<%= hash[:name].blank? ? 'Unknown' : hash[:tooltip] %>"><%= hash[:name].blank? ? 'Unknown' : hash[:name] %></span></th>
         <% end %>
         <th><span class="count-rot315">Total</span></th>
       </tr>
  
positive.code:       <td>Total</td>
        <% @ranges.each do |hash| %>
          <% count = hash[:count] %>
          <td class="<%= 'muted' if count == 0 %>" rel="tooltip" title="<%= hash[:tooltip] if count > 0 %>" data-placement="left">
            <%= link_to_if count > 0, count == 0 ? '-' : count, sheets_path(design_id: @design.id, sheet_before: (hash[:end_date].blank? ? nil : hash[:end_date].strftime("%m/%d/%Y")), sheet_after: (hash[:start_date].blank? ? nil : hash[:start_date].strftime("%m/%d/%Y"))) %>
            <%# hash[:column_count] = count %>
            <% if @percent == 'row' and count > 0 and row_counts.sum > 0 %>
  
negative.code:         </td>
          <% @ranges.each do |hash| %>
            <% count = hash[:scope].with_stratum(@variable, stratum[:value]).count %>
            <td class="<%= 'muted' if count == 0 %>" rel="tooltip" title="<%= hash[:name].blank? ? 'Unknown' : hash[:tooltip] if count > 0 %>" data-placement="left">
              <%= link_to_if count > 0, count == 0 ? '-' : count, sheets_path(design_id: @design.id, stratum_id: (@variable ? @variable.id : nil), stratum_value: stratum[:value], sheet_before: (hash[:end_date].blank? ? nil : hash[:end_date].strftime("%m/%d/%Y")), sheet_after: (hash[:start_date].blank? ? nil : hash[:start_date].strftime("%m/%d/%Y"))) %>
              <% if @percent == 'row' and count > 0 and row_counts.sum > 0 %>
                <span class="muted" style="font-size:0.7em"><%= (count * 100 / row_counts.sum).to_s + "%" %><%#= "%0.01f%" % (count * 100.0 / row_counts.sum) %></span>
  