condition mean min max ZT0-3 0.01019445 0.0 0.0203889 ZT4-7 0.14449304999999998 0.14449304999999998 0.14449304999999998 ZT8-11 0.100679 0.100679 0.100679 ZT12-15 0 0 0 ZT16-19 0.04013565 0.04013565 0.04013565 ZT20-23 0.0 0.0 0.0