condition mean min max ZT0-3 0.11535436199999999 0.0 0.23070872399999998 ZT4-7 0.12147731325 0.0 0.2429546265 ZT8-11 0.07345284875 0.0 0.1469056975 ZT12-15 0.21471120075 0.12289952500000001 0.3065228765 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0