self::$db_duration += (microtime(true) - $stamp);
self::$db_duration_stat += (microtime(true) - $stamp);
$jobs_per_minute[$interval] = number_format($jobs / $interval, 0);
self::$db_duration += (microtime(true) - $stamp);
self::$db_duration_stat += (microtime(true) - $stamp);
$jobs_per_minute[$interval] = number_format($jobs / $interval, 0);