condition mean min max ZT0-3 0.004827365 0.004827365 0.004827365 ZT4-7 0.00666655 0.00666655 0.00666655 ZT8-11 0.0054434 0.0054434 0.0054434 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0