condition mean min max ZT0-3 41.646924999999996 39.11409999999999 44.17975 ZT4-7 97.05385000000001 97.05385000000001 97.05385000000001 ZT8-11 112.17250000000001 112.17250000000001 112.17250000000001 ZT12-15 0 0 0 ZT16-19 23.5794 23.5794 23.5794 ZT20-23 36.0783 36.0783 36.0783