condition mean min max ZT0-3 45.6734 45.6734 45.6734 ZT4-7 42.0512 42.0512 42.0512 ZT8-11 34.59075 34.59075 34.59075 ZT12-15 32.451 32.451 32.451 ZT16-19 44.5633 44.5633 44.5633 ZT20-23 45.87495 45.87495 45.87495