condition mean min max ZT0-3 0.011238533333333333 0.0 0.0337156 ZT4-7 0.0 0.0 0.0 ZT8-11 0.03468715 0.03468715 0.03468715 ZT12-15 0.0 0.0 0.0 ZT16-19 0.03240505 0.03240505 0.03240505 ZT20-23 0.0 0.0 0.0