condition mean min max ZT0-3 0.011403966666666668 0.0 0.0342119 ZT4-7 0.03476185 0.03476185 0.03476185 ZT8-11 0.0 0.0 0.0 ZT12-15 0.017180425 0.0 0.03436085 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0