condition mean min max ZT0-3 4421.35 4421.35 4421.35 ZT4-7 5340.0 5340.0 5340.0 ZT8-11 5123.85 5123.85 5123.85 ZT12-15 6210.7 6210.7 6210.7 ZT16-19 6303.0 6303.0 6303.0 ZT20-23 4204.55 4204.55 4204.55