condition mean min max ZT0-3 0.0180719 0.0180719 0.0180719 ZT4-7 0.005444508333333334 0.005444508333333334 0.005444508333333334 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 0.00018616 0.00018616 0.00018616