condition mean min max ZT0-3 142.28449999999998 142.28449999999998 142.28449999999998 ZT4-7 125.05350000000001 125.05350000000001 125.05350000000001 ZT8-11 142.06349999999998 142.06349999999998 142.06349999999998 ZT12-15 125.089 125.089 125.089 ZT16-19 152.198 152.198 152.198 ZT20-23 124.355 124.355 124.355