condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.01126275 0.01126275 0.01126275 ZT12-15 0.0 0.0 0.0 ZT16-19 0.02439335 0.02439335 0.02439335 ZT20-23 0.01205 0.01205 0.01205