condition mean min max ZT0-3 5.2928575 5.18377 5.4019449999999996 ZT4-7 2.0085 2.0085 2.0085 ZT8-11 0.9755640000000001 0.9755640000000001 0.9755640000000001 ZT12-15 0 0 0 ZT16-19 0.464492 0.464492 0.464492 ZT20-23 1.809265 1.809265 1.809265