condition mean min max ZT0-3 0.14738686525 0.0 0.2947737305 ZT4-7 0.22353764825 0.1886129275 0.25846236899999997 ZT8-11 0.11845343575 0.0477096605 0.189197211 ZT12-15 0.41648652399999997 0.4093971125 0.4235759355 ZT16-19 0.9529027852499999 0.6365260735 1.2692794969999999 ZT20-23 2.4570916445 2.3053656995 2.6088175895