condition mean min max ZT0-3 14.46705 13.7985 15.1356 ZT4-7 13.5955 13.5955 13.5955 ZT8-11 22.169449999999998 22.169449999999998 22.169449999999998 ZT12-15 0 0 0 ZT16-19 24.90355 24.90355 24.90355 ZT20-23 19.71105 19.71105 19.71105