condition mean min max ZT0-3 29.429025000000003 26.245800000000003 32.61225 ZT4-7 44.0471 44.0471 44.0471 ZT8-11 43.24235 43.24235 43.24235 ZT12-15 0 0 0 ZT16-19 45.5981 45.5981 45.5981 ZT20-23 36.1858 36.1858 36.1858