condition mean min max ZT0-3 606.05 606.05 606.05 ZT4-7 446.12300000000005 446.12300000000005 446.12300000000005 ZT8-11 416.7505 416.7505 416.7505 ZT12-15 424.8135 424.8135 424.8135 ZT16-19 727.1445 727.1445 727.1445 ZT20-23 787.6585 787.6585 787.6585