condition mean min max ZT0-3 482.0038333333333 325.36850000000004 780.784 ZT4-7 619.082 619.082 619.082 ZT8-11 579.9555 579.9555 579.9555 ZT12-15 608.00525 573.902 642.1085 ZT16-19 444.57050000000004 444.57050000000004 444.57050000000004 ZT20-23 411.10400000000004 411.10400000000004 411.10400000000004