condition mean min max ZT0-3 432.65 432.65 432.65 ZT4-7 348.7 348.7 348.7 ZT8-11 267.3 267.3 267.3 ZT12-15 270.0 270.0 270.0 ZT16-19 417.15 417.15 417.15 ZT20-23 394.4 394.4 394.4