/**
  * Timer table for query
  * @return string
  */
 protected function timer()
 {
     if ($this->Year == parent::LAST_6_MONTHS || $this->Year == parent::LAST_12_MONTHS) {
         return '((WEEK(FROM_UNIXTIME(`time`),' . $this->WeekStart->mysqlParameter() . ') + ' . $this->timerEnd . ' - ' . $this->WeekStart->phpWeek() . ' - 1)%' . $this->timerEnd . ' + 1)';
     }
     return 'WEEK(FROM_UNIXTIME(`time`),' . $this->WeekStart->mysqlParameter() . ')';
 }