condition mean min max ZT0-3 129.679161 129.679161 129.679161 ZT4-7 90.1902175 90.1902175 90.1902175 ZT8-11 92.4563805 92.4563805 92.4563805 ZT12-15 103.0473485 103.0473485 103.0473485 ZT16-19 94.9467965 94.9467965 94.9467965 ZT20-23 100.565972 100.565972 100.565972