condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 1.42412 1.42412 1.42412 ZT8-11 2.091235 2.091235 2.091235 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0 0.0 0.0 ZT20-23 4.688655 4.688655 4.688655