condition mean min max ZT0-3 919.85 919.85 919.85 ZT4-7 1076.8 1076.8 1076.8 ZT8-11 1123.5 1123.5 1123.5 ZT12-15 1436.55 1436.55 1436.55 ZT16-19 1151.35 1151.35 1151.35 ZT20-23 935.6 935.6 935.6