h1 = @execution_environment

.table-responsive
  table.table.table-striped class=(@execution_environment.present? ? 'sortable' : '')
    thead
      tr
        - ['.exercise', '.users_and_programming_groups', '.score', '.maximum_score', '.stddev_score', '.percentage_correct', '.runs', '.worktime', '.stddev_worktime'].each do |title|
          th.header = t(title)
    tbody
      - @execution_environment.exercises.each do |exercise|
        - us = contributor_statistics[exercise.id]
        - us ||= {'contributors' => 0, 'average_score' => 0.0, 'maximum_score' => 0, 'stddev_score' => 0.0, 'percent_correct' => nil, 'average_submission_count' => 0}
        - wts = working_time_statistics[exercise.id]
        - if wts then average_time = wts['average_time'] else 0 # rubocop:disable Lint/ElseLayout
        - if wts then stddev_time = wts['stddev_time'] else 0 # rubocop:disable Lint/ElseLayout
        tr
          td = link_to_if policy(exercise).statistics?, exercise.title, controller: 'exercises', action: 'statistics', id: exercise.id, 'data-turbolinks': 'false'
          td = us['contributors']
          td = us['average_score'].to_f.round(4)
          td = us['maximum_score'].to_f.round(2)
          td = us['stddev_score'].to_f.round(4)
          td = (us['percent_correct'].to_f || 0).round(4)
          td = us['average_submission_count'].to_f.round(2)
          td = average_time
          td = stddev_time