condition mean min max ZT0-3 28.544375000000002 26.898400000000002 30.190350000000002 ZT4-7 36.4726 36.4726 36.4726 ZT8-11 54.417699999999996 54.417699999999996 54.417699999999996 ZT12-15 0 0 0 ZT16-19 53.7361 53.7361 53.7361 ZT20-23 37.7825 37.7825 37.7825