condition mean min max ZT0-3 0.04870833333333333 0.0 0.146125 ZT4-7 0.1482105 0.1482105 0.1482105 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0