condition mean min max ZT0-3 113.100824 113.100824 113.100824 ZT4-7 83.73608999999999 83.73608999999999 83.73608999999999 ZT8-11 116.25581249999999 116.25581249999999 116.25581249999999 ZT12-15 141.5745115 141.5745115 141.5745115 ZT16-19 169.134572 169.134572 169.134572 ZT20-23 147.82295449999998 147.82295449999998 147.82295449999998