condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.01843055 0.01843055 0.01843055 ZT8-11 0.0190286 0.0190286 0.0190286 ZT12-15 0 0 0 ZT16-19 0.0184317 0.0184317 0.0184317 ZT20-23 0.01841055 0.01841055 0.01841055