/**
  * Prints statistics on after exercise event.
  *
  * @param Formatter $formatter
  * @param string    $eventName
  */
 private function printStatisticsOnAfterExerciseEvent(Formatter $formatter, $eventName)
 {
     if (ExerciseCompleted::AFTER !== $eventName) {
         return;
     }
     $this->statistics->stopTimer();
     $this->printer->printStatistics($formatter, $this->statistics);
 }